Home / 396,847.20-547,653.24-215,562.66

Finding the Fourth Proportional to 396,847.20, 547,653.24 and 215,562.66

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Solution

The fourth proportional to 396,847.20, 547,653.24 and 215,562.66 is: 297,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,847.20 : 547,653.24 = 215,562.66 : x
  2. Step 2: Convert to fraction form
    396,847.20/547,653.24 = 215,562.66/x
  3. Step 3: Cross multiply
    396,847.20x = 547,653.24 × 215,562.66
  4. Step 4: Simplify right side
    396,847.20x = 118,053,589,172.02
  5. Step 5: Solve for x
    x = 118,053,589,172.02/396,847.20
  6. Step 6: Final answer
    x = 297,478.70

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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.