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Finding the Fourth Proportional to 288,287.34, 432,472.35 and 88,624.49

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Solution

The fourth proportional to 288,287.34, 432,472.35 and 88,624.49 is: 132,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,287.34 : 432,472.35 = 88,624.49 : x
  2. Step 2: Convert to fraction form
    288,287.34/432,472.35 = 88,624.49/x
  3. Step 3: Cross multiply
    288,287.34x = 432,472.35 × 88,624.49
  4. Step 4: Simplify right side
    288,287.34x = 38,327,639,295.49
  5. Step 5: Solve for x
    x = 38,327,639,295.49/288,287.34
  6. Step 6: Final answer
    x = 132,949.44

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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.