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Finding the Fourth Proportional to 521,166.08, 781,792.96 and 166,230.56

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Solution

The fourth proportional to 521,166.08, 781,792.96 and 166,230.56 is: 249,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,166.08 : 781,792.96 = 166,230.56 : x
  2. Step 2: Convert to fraction form
    521,166.08/781,792.96 = 166,230.56/x
  3. Step 3: Cross multiply
    521,166.08x = 781,792.96 × 166,230.56
  4. Step 4: Simplify right side
    521,166.08x = 129,957,881,544.86
  5. Step 5: Solve for x
    x = 129,957,881,544.86/521,166.08
  6. Step 6: Final answer
    x = 249,359.82

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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.