Finding the Third Proportional to 156 and 358.50
Calculator
Solution
The third proportional to 156 and 358.50 is: 823.86
Step by Step Solution
- Step 1: Write the proportion equation
156 : 358.50 = 358.50 : x - Step 2: Convert to fraction form
156/358.50 = 358.50/x - Step 3: Cross multiply
156x = 358.50 × 358.50 - Step 4: Simplify right side
156x = 128,522.25 - Step 5: Solve for x
x = 128,522.25/156 - Step 6: Final answer
x = 823.86
Related Problems
Find third proportional to 78 and 179.25
Half scale
Find third proportional to 312 and 717
Double scale
Find third proportional to 158 and 363
Similar ratio
Find third proportional to 234 and 537.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.