The first two are regular Rainbos.
Tri-color has gone out of fashion as a name -- I think it was confusing. What was most often called "tri-color" is now called "multicolor".
The first two have three colors if you count the base glass, but we didn't usually count the base glass ... we were concentrating on the ribbons. Look for three distinct colors of ribbons. Usually six ribbons in total. And then you have what used to be called tri-color. So, the third marble would have qualified with its red, white and blue ribbons . But as noted, now we call it a Multicolor Rainbo.
The fourth is not quite as clear to me. I may be seeing a Multicolor Rainbo color combination -- red, white and aqua. But is it coming from three distinct colors of ribbons? Or is the aqua coming from the base glass?