Finding the Fourth Proportional to 542,711.20, 814,105.68 and 143,347.99
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Solution
The fourth proportional to 542,711.20, 814,105.68 and 143,347.99 is: 215,032.25
Step by Step Solution
- Step 1: Write the proportion equation
542,711.20 : 814,105.68 = 143,347.99 : x - Step 2: Convert to fraction form
542,711.20/814,105.68 = 143,347.99/x - Step 3: Cross multiply
542,711.20x = 814,105.68 × 143,347.99 - Step 4: Simplify right side
542,711.20x = 116,700,412,875.58 - Step 5: Solve for x
x = 116,700,412,875.58/542,711.20 - Step 6: Final answer
x = 215,032.25
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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.