Finding the Fourth Proportional to 138,472.98, 207,709.47 and 33,291.95
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Solution
The fourth proportional to 138,472.98, 207,709.47 and 33,291.95 is: 49,937.92
Step by Step Solution
- Step 1: Write the proportion equation
138,472.98 : 207,709.47 = 33,291.95 : x - Step 2: Convert to fraction form
138,472.98/207,709.47 = 33,291.95/x - Step 3: Cross multiply
138,472.98x = 207,709.47 × 33,291.95 - Step 4: Simplify right side
138,472.98x = 6,915,053,150.90 - Step 5: Solve for x
x = 6,915,053,150.90/138,472.98 - Step 6: Final answer
x = 49,937.92
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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.