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Finding the Fourth Proportional to 478,488.20, 717,732.29 and 141,502.59

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Solution

The fourth proportional to 478,488.20, 717,732.29 and 141,502.59 is: 212,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,488.20 : 717,732.29 = 141,502.59 : x
  2. Step 2: Convert to fraction form
    478,488.20/717,732.29 = 141,502.59/x
  3. Step 3: Cross multiply
    478,488.20x = 717,732.29 × 141,502.59
  4. Step 4: Simplify right side
    478,488.20x = 101,560,978,315.39
  5. Step 5: Solve for x
    x = 101,560,978,315.39/478,488.20
  6. Step 6: Final answer
    x = 212,253.89

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Similar ratio
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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.