Home / 396,410.04-547,046.19-215,121.96

Finding the Fourth Proportional to 396,410.04, 547,046.19 and 215,121.96

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Solution

The fourth proportional to 396,410.04, 547,046.19 and 215,121.96 is: 296,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,410.04 : 547,046.19 = 215,121.96 : x
  2. Step 2: Convert to fraction form
    396,410.04/547,046.19 = 215,121.96/x
  3. Step 3: Cross multiply
    396,410.04x = 547,046.19 × 215,121.96
  4. Step 4: Simplify right side
    396,410.04x = 117,681,648,603.33
  5. Step 5: Solve for x
    x = 117,681,648,603.33/396,410.04
  6. Step 6: Final answer
    x = 296,868.49

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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.