Home / 396,538.27-547,207.92-215,246.30

Finding the Fourth Proportional to 396,538.27, 547,207.92 and 215,246.30

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Solution

The fourth proportional to 396,538.27, 547,207.92 and 215,246.30 is: 297,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,538.27 : 547,207.92 = 215,246.30 : x
  2. Step 2: Convert to fraction form
    396,538.27/547,207.92 = 215,246.30/x
  3. Step 3: Cross multiply
    396,538.27x = 547,207.92 × 215,246.30
  4. Step 4: Simplify right side
    396,538.27x = 117,784,477,374.66
  5. Step 5: Solve for x
    x = 117,784,477,374.66/396,538.27
  6. Step 6: Final answer
    x = 297,031.81

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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.