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Finding the Fourth Proportional to 221,665.47, 332,569.04 and 79,414.71

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Solution

The fourth proportional to 221,665.47, 332,569.04 and 79,414.71 is: 119,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,665.47 : 332,569.04 = 79,414.71 : x
  2. Step 2: Convert to fraction form
    221,665.47/332,569.04 = 79,414.71/x
  3. Step 3: Cross multiply
    221,665.47x = 332,569.04 × 79,414.71
  4. Step 4: Simplify right side
    221,665.47x = 26,410,873,469.50
  5. Step 5: Solve for x
    x = 26,410,873,469.50/221,665.47
  6. Step 6: Final answer
    x = 119,147.44

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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.