Finding the Fourth Proportional to 138,373.36, 207,565.50 and 38,542.28
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Solution
The fourth proportional to 138,373.36, 207,565.50 and 38,542.28 is: 57,814.94
Step by Step Solution
- Step 1: Write the proportion equation
138,373.36 : 207,565.50 = 38,542.28 : x - Step 2: Convert to fraction form
138,373.36/207,565.50 = 38,542.28/x - Step 3: Cross multiply
138,373.36x = 207,565.50 × 38,542.28 - Step 4: Simplify right side
138,373.36x = 8,000,046,677.87 - Step 5: Solve for x
x = 8,000,046,677.87/138,373.36 - Step 6: Final answer
x = 57,814.94
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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.