Home / 396,546.48-547,234.84-215,258.53

Finding the Fourth Proportional to 396,546.48, 547,234.84 and 215,258.53

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Solution

The fourth proportional to 396,546.48, 547,234.84 and 215,258.53 is: 297,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,546.48 : 547,234.84 = 215,258.53 : x
  2. Step 2: Convert to fraction form
    396,546.48/547,234.84 = 215,258.53/x
  3. Step 3: Cross multiply
    396,546.48x = 547,234.84 × 215,258.53
  4. Step 4: Simplify right side
    396,546.48x = 117,796,966,146.89
  5. Step 5: Solve for x
    x = 117,796,966,146.89/396,546.48
  6. Step 6: Final answer
    x = 297,057.15

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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.