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Finding the Fourth Proportional to 363,909.60, 545,864.40 and 231,377.40

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Solution

The fourth proportional to 363,909.60, 545,864.40 and 231,377.40 is: 347,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,909.60 : 545,864.40 = 231,377.40 : x
  2. Step 2: Convert to fraction form
    363,909.60/545,864.40 = 231,377.40/x
  3. Step 3: Cross multiply
    363,909.60x = 545,864.40 × 231,377.40
  4. Step 4: Simplify right side
    363,909.60x = 126,300,685,624.56
  5. Step 5: Solve for x
    x = 126,300,685,624.56/363,909.60
  6. Step 6: Final answer
    x = 347,066.10

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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.