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Finding the Fourth Proportional to 396,377.88, 546,845.76 and 226,520.88

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Solution

The fourth proportional to 396,377.88, 546,845.76 and 226,520.88 is: 312,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,377.88 : 546,845.76 = 226,520.88 : x
  2. Step 2: Convert to fraction form
    396,377.88/546,845.76 = 226,520.88/x
  3. Step 3: Cross multiply
    396,377.88x = 546,845.76 × 226,520.88
  4. Step 4: Simplify right side
    396,377.88x = 123,871,982,779.47
  5. Step 5: Solve for x
    x = 123,871,982,779.47/396,377.88
  6. Step 6: Final answer
    x = 312,509.83

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1.5x scale

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.