Proportionaly or Proportionally: How To spell?
The word Proportionaly is misspelled against Proportionally, an adverb meaning "In proportion; in due degree; adapted relatively; as, all parts of the building are proportionally large."
Proportionally has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings proportiona & y which should not be misspelled with single 'L'
Wrong Spelling:  proportiona-l-y  Correct Spelling:  proportiona-ll-y 
Find more incorrect spellings of Proportionally to spell right way.