Home / 396,464.94-547,126.86-215,179.04

Finding the Fourth Proportional to 396,464.94, 547,126.86 and 215,179.04

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Solution

The fourth proportional to 396,464.94, 547,126.86 and 215,179.04 is: 296,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,464.94 : 547,126.86 = 215,179.04 : x
  2. Step 2: Convert to fraction form
    396,464.94/547,126.86 = 215,179.04/x
  3. Step 3: Cross multiply
    396,464.94x = 547,126.86 × 215,179.04
  4. Step 4: Simplify right side
    396,464.94x = 117,730,229,757.38
  5. Step 5: Solve for x
    x = 117,730,229,757.38/396,464.94
  6. Step 6: Final answer
    x = 296,949.91

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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.