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Finding the Fourth Proportional to 359,872, 539,439.36 and 149,632

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Solution

The fourth proportional to 359,872, 539,439.36 and 149,632 is: 224,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,872 : 539,439.36 = 149,632 : x
  2. Step 2: Convert to fraction form
    359,872/539,439.36 = 149,632/x
  3. Step 3: Cross multiply
    359,872x = 539,439.36 × 149,632
  4. Step 4: Simplify right side
    359,872x = 80,717,390,315.52
  5. Step 5: Solve for x
    x = 80,717,390,315.52/359,872
  6. Step 6: Final answer
    x = 224,294.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.