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Finding the Fourth Proportional to 664,737.30, 996,911.55 and 238,223.70

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Solution

The fourth proportional to 664,737.30, 996,911.55 and 238,223.70 is: 357,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,737.30 : 996,911.55 = 238,223.70 : x
  2. Step 2: Convert to fraction form
    664,737.30/996,911.55 = 238,223.70/x
  3. Step 3: Cross multiply
    664,737.30x = 996,911.55 × 238,223.70
  4. Step 4: Simplify right side
    664,737.30x = 237,487,958,013.74
  5. Step 5: Solve for x
    x = 237,487,958,013.74/664,737.30
  6. Step 6: Final answer
    x = 357,265.88

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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.