proportionable vs satisfactory

proportionable

adj
  • In the correct proportion; proportional; commensurable. 

  • Capable of being proportioned, or made proportional. 

satisfactory

adj
  • Done to satisfaction; adequate or sufficient. 

  • Causing satisfaction; agreeable or pleasant; satisfying. 

  • Making atonement for a sin; expiatory. 

noun
  • The rating given to somebody or something that meets requirements without exceeding them. 

  • Somebody or something that meets requirements without exceeding them. 

How often have the words proportionable and satisfactory occurred in a corpus of books? (source: Google Ngram Viewer )