You can use the
tabularx package to insert a
tabularx that fits within the line (or
7in, depending on your requirement) and
\smash the contents of your image to make it fit within your parameters vertically. Here's a quick example of what I mean:
a \\ b \\
c & \hfill
\hfill pushes the contents of the
X-column to the right (as it seems like you're after an
r-column, but it may not be necessary). The image height is forced to
3\normalbaselineskip which makes it fit within 3 lines of the table. However, it's moved down slightly (
.3\normalbaselineskip) to accommodate for the fact that it's actually placed on the baseline, which doesn't center it vertically across the three rows.
\smash removes all vertical height, making it span more than one row (similar to what
\multirow from the
multirow package would do).
tabularx is not necessary, but it may help in these situations, depending on your actual application/usage.