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Finding the Fourth Proportional to 354,502.20, 531,753.30 and 88,260.60

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Solution

The fourth proportional to 354,502.20, 531,753.30 and 88,260.60 is: 132,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,502.20 : 531,753.30 = 88,260.60 : x
  2. Step 2: Convert to fraction form
    354,502.20/531,753.30 = 88,260.60/x
  3. Step 3: Cross multiply
    354,502.20x = 531,753.30 × 88,260.60
  4. Step 4: Simplify right side
    354,502.20x = 46,932,865,309.98
  5. Step 5: Solve for x
    x = 46,932,865,309.98/354,502.20
  6. Step 6: Final answer
    x = 132,390.90

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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.