Home / 396,414.31-547,053.18-215,126.20

Finding the Fourth Proportional to 396,414.31, 547,053.18 and 215,126.20

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Solution

The fourth proportional to 396,414.31, 547,053.18 and 215,126.20 is: 296,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,414.31 : 547,053.18 = 215,126.20 : x
  2. Step 2: Convert to fraction form
    396,414.31/547,053.18 = 215,126.20/x
  3. Step 3: Cross multiply
    396,414.31x = 547,053.18 × 215,126.20
  4. Step 4: Simplify right side
    396,414.31x = 117,685,471,811.32
  5. Step 5: Solve for x
    x = 117,685,471,811.32/396,414.31
  6. Step 6: Final answer
    x = 296,874.93

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1.5x scale

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.