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Finding the Fourth Proportional to 283,158.60, 424,737.90 and 272,272.20

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Solution

The fourth proportional to 283,158.60, 424,737.90 and 272,272.20 is: 408,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,158.60 : 424,737.90 = 272,272.20 : x
  2. Step 2: Convert to fraction form
    283,158.60/424,737.90 = 272,272.20/x
  3. Step 3: Cross multiply
    283,158.60x = 424,737.90 × 272,272.20
  4. Step 4: Simplify right side
    283,158.60x = 115,644,322,456.38
  5. Step 5: Solve for x
    x = 115,644,322,456.38/283,158.60
  6. Step 6: Final answer
    x = 408,408.30

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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.