If you're referring to the Genovese and Gambinos, the 200 figure for each family is consistent with other estimates. That's total made members - active, inactive, in prison. The Luccheses, Colombos, and Bonannos each have a little over 100 total made members.

Estimating associates is something else entirely. It's not like counting members, where somebody is made or they're not. It all depends on how one defines an associate and that's usually up to the local FBI SAC in a given area. Depending on how rigid or loose of a definition you want to go with, you'll see the ratio of members to associates in the NY families range anywhere from 1/3 to 1/10. Meaning 3 associates for every member all the way up to 10 associates for every member.