proportional

definition: 
Corresponding in size or amount to something else:
sentence: 
Your salary should be proportional to your contribution to the company.
difficulty: 
easy
toefl frequency: 
2
toefl classification: 
adverb: 
proportionally
adjective: 
adverb sentence: 
The benefits paid out are proportionally greater for lower-wage workers
Health problems increased proportionally to the number of hours worked
adjective sentence: 
verb: 
verb sentence: 
noun: 
proportion
noun sentence: 
The proportion of greenhouse gases in the atmosphere is rising
The sculpture seemed out of proportion to its surroundings
The proportion of tillage to pasture is roughly as 1 to 22.