Home / 396,942.16-547,770.68-215,650.12

Finding the Fourth Proportional to 396,942.16, 547,770.68 and 215,650.12

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Solution

The fourth proportional to 396,942.16, 547,770.68 and 215,650.12 is: 297,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,942.16 : 547,770.68 = 215,650.12 : x
  2. Step 2: Convert to fraction form
    396,942.16/547,770.68 = 215,650.12/x
  3. Step 3: Cross multiply
    396,942.16x = 547,770.68 × 215,650.12
  4. Step 4: Simplify right side
    396,942.16x = 118,126,812,874.48
  5. Step 5: Solve for x
    x = 118,126,812,874.48/396,942.16
  6. Step 6: Final answer
    x = 297,592.00

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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.