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Finding the Fourth Proportional to 396,550, 547,250.52 and 217,713.52

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Solution

The fourth proportional to 396,550, 547,250.52 and 217,713.52 is: 300,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,550 : 547,250.52 = 217,713.52 : x
  2. Step 2: Convert to fraction form
    396,550/547,250.52 = 217,713.52/x
  3. Step 3: Cross multiply
    396,550x = 547,250.52 × 217,713.52
  4. Step 4: Simplify right side
    396,550x = 119,143,837,031.03
  5. Step 5: Solve for x
    x = 119,143,837,031.03/396,550
  6. Step 6: Final answer
    x = 300,450.98

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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.