Home / 396,507.35-547,180.52-215,219.43

Finding the Fourth Proportional to 396,507.35, 547,180.52 and 215,219.43

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Solution

The fourth proportional to 396,507.35, 547,180.52 and 215,219.43 is: 297,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,507.35 : 547,180.52 = 215,219.43 : x
  2. Step 2: Convert to fraction form
    396,507.35/547,180.52 = 215,219.43/x
  3. Step 3: Cross multiply
    396,507.35x = 547,180.52 × 215,219.43
  4. Step 4: Simplify right side
    396,507.35x = 117,763,878,545.41
  5. Step 5: Solve for x
    x = 117,763,878,545.41/396,507.35
  6. Step 6: Final answer
    x = 297,003.01

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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.