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# proportional

[pruh-pawr-shuh-nl, -pohr-] /prəˈpɔr ʃə nl, -ˈpoʊr-/
adjective
1.
having due proportion; corresponding.
2.
being in or characterized by proportion.
3.
of, relating to, or based on proportion; relative.
4.
Mathematics.
1. (of two quantities) having the same or a constant ratio or relation:
The quantities y and x are proportional if y/x = k, where k is the constant of proportionality.
2. (of a first quantity with respect to a second quantity) a constant multiple of:
The quantity y is proportional to x if y = kx, where k is the constant of proportionality.
Origin of proportional
1350-1400
1350-1400; Middle English proporcional < Latin prōportiōnālis. See proportion, -al1
Related forms
proportionality, noun
proportionally, adverb
interproportional, adjective
nonproportional, adjective
nonproportionally, adverb
subproportional, adjective
subproportionally, adverb
unproportional, adjective
unproportionally, adverb
Can be confused
proportional, proportionate.
Synonyms
1. harmonious, comparative, accordant, consonant, proportionate.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for proportionally
Contemporary Examples
• The fact is that to respond ‘proportionally’ in warfare is merely to ensure the continuance of the conflict.

• The death toll from the Thirty Years War was proportionally double that of World War I and in the range of World War II in Europe.

October 3, 2011
• They're both inexplicably wealthy and powerful, with beautiful girlfriends and proportionally smug attitudes.

• Meager as it was, that 2-cent mechanical rate of 1914 proportionally dwarfs the 9.1 cents per physical copy paid today.

• Their surfaces are a froth of magnetic storms, proportionally more violent than the worst weather on the Sun.

Historical Examples
• It was no light task to fill this great chest, for it stood seven feet high and proportionally wide.

N. Hudson Moore
• In respect to population, the increase is proportionally great.

• The young larv have proportionally much longer and more erect spines with distinct long prickles on them.

August Weismann
• Victory had inclined to the side of Mascarin, and he was proportionally jubilant.

Emile Gaboriau
• The cross section (Fig. 4) shows how well he had formed the vessel, proportionally.

Roger Thompson Finlay
British Dictionary definitions for proportionally

## proportional

/prəˈpɔːʃənəl/
adjective
1.
of, involving, or being in proportion
2.
(maths) having or related by a constant ratio
noun
3.
(maths) an unknown term in a proportion: in a/b = c/x, x is the fourth proportional
Derived Forms
proportionality, noun
proportionally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for proportionally

## proportional

adj.

late 14c. (implied in proportionally), from Late Latin proportionalis "pertaining to proportions," from proportio (see proportion). Related: Proportionally.

Online Etymology Dictionary, © 2010 Douglas Harper
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### Word Value for proportionally

21
25
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