Finding the Fourth Proportional to 508,720.80, 763,201.08 and 153,737.76
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Solution
The fourth proportional to 508,720.80, 763,201.08 and 153,737.76 is: 230,642.87
Step by Step Solution
- Step 1: Write the proportion equation
508,720.80 : 763,201.08 = 153,737.76 : x - Step 2: Convert to fraction form
508,720.80/763,201.08 = 153,737.76/x - Step 3: Cross multiply
508,720.80x = 763,201.08 × 153,737.76 - Step 4: Simplify right side
508,720.80x = 117,332,824,468.78 - Step 5: Solve for x
x = 117,332,824,468.78/508,720.80 - Step 6: Final answer
x = 230,642.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.