Home / 396,517.13-547,194.06-215,229.03

Finding the Fourth Proportional to 396,517.13, 547,194.06 and 215,229.03

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Solution

The fourth proportional to 396,517.13, 547,194.06 and 215,229.03 is: 297,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,517.13 : 547,194.06 = 215,229.03 : x
  2. Step 2: Convert to fraction form
    396,517.13/547,194.06 = 215,229.03/x
  3. Step 3: Cross multiply
    396,517.13x = 547,194.06 × 215,229.03
  4. Step 4: Simplify right side
    396,517.13x = 117,772,047,781.55
  5. Step 5: Solve for x
    x = 117,772,047,781.55/396,517.13
  6. Step 6: Final answer
    x = 297,016.29

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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.