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Finding the Fourth Proportional to 359,439.68, 539,299.20 and 149,024

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Solution

The fourth proportional to 359,439.68, 539,299.20 and 149,024 is: 223,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,439.68 : 539,299.20 = 149,024 : x
  2. Step 2: Convert to fraction form
    359,439.68/539,299.20 = 149,024/x
  3. Step 3: Cross multiply
    359,439.68x = 539,299.20 × 149,024
  4. Step 4: Simplify right side
    359,439.68x = 80,368,523,980.80
  5. Step 5: Solve for x
    x = 80,368,523,980.80/359,439.68
  6. Step 6: Final answer
    x = 223,593.91

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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.