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Finding the Fourth Proportional to 396,390.34, 547,019.04 and 226,628.02

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Solution

The fourth proportional to 396,390.34, 547,019.04 and 226,628.02 is: 312,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,390.34 : 547,019.04 = 226,628.02 : x
  2. Step 2: Convert to fraction form
    396,390.34/547,019.04 = 226,628.02/x
  3. Step 3: Cross multiply
    396,390.34x = 547,019.04 × 226,628.02
  4. Step 4: Simplify right side
    396,390.34x = 123,969,841,937.50
  5. Step 5: Solve for x
    x = 123,969,841,937.50/396,390.34
  6. Step 6: Final answer
    x = 312,746.88

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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.