Home / 396,454.32-547,110.90-215,167.86

Finding the Fourth Proportional to 396,454.32, 547,110.90 and 215,167.86

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Solution

The fourth proportional to 396,454.32, 547,110.90 and 215,167.86 is: 296,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,454.32 : 547,110.90 = 215,167.86 : x
  2. Step 2: Convert to fraction form
    396,454.32/547,110.90 = 215,167.86/x
  3. Step 3: Cross multiply
    396,454.32x = 547,110.90 × 215,167.86
  4. Step 4: Simplify right side
    396,454.32x = 117,720,681,535.67
  5. Step 5: Solve for x
    x = 117,720,681,535.67/396,454.32
  6. Step 6: Final answer
    x = 296,933.78

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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.