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Finding the Fourth Proportional to 356,400.60, 534,600.69 and 332,781

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Solution

The fourth proportional to 356,400.60, 534,600.69 and 332,781 is: 499,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,400.60 : 534,600.69 = 332,781 : x
  2. Step 2: Convert to fraction form
    356,400.60/534,600.69 = 332,781/x
  3. Step 3: Cross multiply
    356,400.60x = 534,600.69 × 332,781
  4. Step 4: Simplify right side
    356,400.60x = 177,904,952,218.89
  5. Step 5: Solve for x
    x = 177,904,952,218.89/356,400.60
  6. Step 6: Final answer
    x = 499,171.30

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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.