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Finding the Fourth Proportional to 352,121.60, 527,404.80 and 185,715.20

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Solution

The fourth proportional to 352,121.60, 527,404.80 and 185,715.20 is: 278,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,121.60 : 527,404.80 = 185,715.20 : x
  2. Step 2: Convert to fraction form
    352,121.60/527,404.80 = 185,715.20/x
  3. Step 3: Cross multiply
    352,121.60x = 527,404.80 × 185,715.20
  4. Step 4: Simplify right side
    352,121.60x = 97,947,087,912.96
  5. Step 5: Solve for x
    x = 97,947,087,912.96/352,121.60
  6. Step 6: Final answer
    x = 278,162.68

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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.