Home / 396,494.25-547,160.72-215,206.17

Finding the Fourth Proportional to 396,494.25, 547,160.72 and 215,206.17

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Solution

The fourth proportional to 396,494.25, 547,160.72 and 215,206.17 is: 296,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,494.25 : 547,160.72 = 215,206.17 : x
  2. Step 2: Convert to fraction form
    396,494.25/547,160.72 = 215,206.17/x
  3. Step 3: Cross multiply
    396,494.25x = 547,160.72 × 215,206.17
  4. Step 4: Simplify right side
    396,494.25x = 117,752,361,849.61
  5. Step 5: Solve for x
    x = 117,752,361,849.61/396,494.25
  6. Step 6: Final answer
    x = 296,983.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.