Home / 396,997.28-547,903.32-227,286.08

Finding the Fourth Proportional to 396,997.28, 547,903.32 and 227,286.08

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Solution

The fourth proportional to 396,997.28, 547,903.32 and 227,286.08 is: 313,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,997.28 : 547,903.32 = 227,286.08 : x
  2. Step 2: Convert to fraction form
    396,997.28/547,903.32 = 227,286.08/x
  3. Step 3: Cross multiply
    396,997.28x = 547,903.32 × 227,286.08
  4. Step 4: Simplify right side
    396,997.28x = 124,530,797,821.79
  5. Step 5: Solve for x
    x = 124,530,797,821.79/396,997.28
  6. Step 6: Final answer
    x = 313,681.74

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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.