Finding the Third Proportional to 242 and 261.50
Calculator
Solution
The third proportional to 242 and 261.50 is: 282.57
Step by Step Solution
- Step 1: Write the proportion equation
242 : 261.50 = 261.50 : x - Step 2: Convert to fraction form
242/261.50 = 261.50/x - Step 3: Cross multiply
242x = 261.50 × 261.50 - Step 4: Simplify right side
242x = 68,382.25 - Step 5: Solve for x
x = 68,382.25/242 - Step 6: Final answer
x = 282.57
Related Problems
Find third proportional to 121 and 130.75
Half scale
Find third proportional to 484 and 523
Double scale
Find third proportional to 244 and 264
Similar ratio
Find third proportional to 363 and 392.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.