Finding the Fourth Proportional to 351,720.36, 527,367.84 and 138,232.68
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Solution
The fourth proportional to 351,720.36, 527,367.84 and 138,232.68 is: 207,265.42
Step by Step Solution
- Step 1: Write the proportion equation
351,720.36 : 527,367.84 = 138,232.68 : x - Step 2: Convert to fraction form
351,720.36/527,367.84 = 138,232.68/x - Step 3: Cross multiply
351,720.36x = 527,367.84 × 138,232.68 - Step 4: Simplify right side
351,720.36x = 72,899,469,869.01 - Step 5: Solve for x
x = 72,899,469,869.01/351,720.36 - Step 6: Final answer
x = 207,265.42
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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.