In order to represent four consecutive numbers, we can use the expressions "x", "x+1", "x+2" and "x+3".
If the sum of these numbers is equal to 350, we can write the following equation and solve it for x:
![\begin{gathered} (x)+(x+1)+(x+2)+(x+3)=350\\ \\ 4x+6=350\\ \\ 4x=344\\ \\ x=86 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/e4rzvuqirhjqi80rstzdcrra59n3afazau.png)
The third number is the number "x+2", so its value is 88.
Therefore the answer is option d.