Home / 396,540.74-547,227.70-215,253.02

Finding the Fourth Proportional to 396,540.74, 547,227.70 and 215,253.02

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Solution

The fourth proportional to 396,540.74, 547,227.70 and 215,253.02 is: 297,049.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540.74 : 547,227.70 = 215,253.02 : x
  2. Step 2: Convert to fraction form
    396,540.74/547,227.70 = 215,253.02/x
  3. Step 3: Cross multiply
    396,540.74x = 547,227.70 × 215,253.02
  4. Step 4: Simplify right side
    396,540.74x = 117,792,415,052.65
  5. Step 5: Solve for x
    x = 117,792,415,052.65/396,540.74
  6. Step 6: Final answer
    x = 297,049.97

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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.