Finding the Third Proportional to 217 and 236.50
Calculator
Solution
The third proportional to 217 and 236.50 is: 257.75
Step by Step Solution
- Step 1: Write the proportion equation
217 : 236.50 = 236.50 : x - Step 2: Convert to fraction form
217/236.50 = 236.50/x - Step 3: Cross multiply
217x = 236.50 × 236.50 - Step 4: Simplify right side
217x = 55,932.25 - Step 5: Solve for x
x = 55,932.25/217 - Step 6: Final answer
x = 257.75
Related Problems
Find third proportional to 108.50 and 118.25
Half scale
Find third proportional to 434 and 473
Double scale
Find third proportional to 219 and 239
Similar ratio
Find third proportional to 325.50 and 354.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.