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Finding the Fourth Proportional to 396,553.33, 547,253.56 and 215,265.32

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Solution

The fourth proportional to 396,553.33, 547,253.56 and 215,265.32 is: 297,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,553.33 : 547,253.56 = 215,265.32 : x
  2. Step 2: Convert to fraction form
    396,553.33/547,253.56 = 215,265.32/x
  3. Step 3: Cross multiply
    396,553.33x = 547,253.56 × 215,265.32
  4. Step 4: Simplify right side
    396,553.33x = 117,804,712,714.54
  5. Step 5: Solve for x
    x = 117,804,712,714.54/396,553.33
  6. Step 6: Final answer
    x = 297,071.55

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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.