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Finding the Fourth Proportional to 442,867.88, 664,407.28 and 143,348.52

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Solution

The fourth proportional to 442,867.88, 664,407.28 and 143,348.52 is: 215,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867.88 : 664,407.28 = 143,348.52 : x
  2. Step 2: Convert to fraction form
    442,867.88/664,407.28 = 143,348.52/x
  3. Step 3: Cross multiply
    442,867.88x = 664,407.28 × 143,348.52
  4. Step 4: Simplify right side
    442,867.88x = 95,241,800,265.23
  5. Step 5: Solve for x
    x = 95,241,800,265.23/442,867.88
  6. Step 6: Final answer
    x = 215,056.92

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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.