Home / 396,938.90-547,773.36-215,649.38

Finding the Fourth Proportional to 396,938.90, 547,773.36 and 215,649.38

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Solution

The fourth proportional to 396,938.90, 547,773.36 and 215,649.38 is: 297,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,938.90 : 547,773.36 = 215,649.38 : x
  2. Step 2: Convert to fraction form
    396,938.90/547,773.36 = 215,649.38/x
  3. Step 3: Cross multiply
    396,938.90x = 547,773.36 × 215,649.38
  4. Step 4: Simplify right side
    396,938.90x = 118,126,985,464.52
  5. Step 5: Solve for x
    x = 118,126,985,464.52/396,938.90
  6. Step 6: Final answer
    x = 297,594.88

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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.