proportionally vs proportionately

proportionally and proportionately both are adverbs.

Word	Noun	Adjective	Verb	Adverb
proportionally	No	No	No	Yes
proportionately	No	No	No	Yes

As adverbs, proportionally and proportionately are synonyms defined as:

proportionally (adverb)	proportionately (adverb)
to a proportionate degree	to a proportionate degree
	in a way that is in correspondence among the constituents of another entity
	in a way that agrees in amount, magnitude or degree