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Finding the Fourth Proportional to 442,882.67, 664,429.46 and 143,363.30

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Solution

The fourth proportional to 442,882.67, 664,429.46 and 143,363.30 is: 215,079.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,882.67 : 664,429.46 = 143,363.30 : x
  2. Step 2: Convert to fraction form
    442,882.67/664,429.46 = 143,363.30/x
  3. Step 3: Cross multiply
    442,882.67x = 664,429.46 × 143,363.30
  4. Step 4: Simplify right side
    442,882.67x = 95,254,795,963.85
  5. Step 5: Solve for x
    x = 95,254,795,963.85/442,882.67
  6. Step 6: Final answer
    x = 215,079.08

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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.