Home / 396,540.65-547,226.37-215,252.54

Finding the Fourth Proportional to 396,540.65, 547,226.37 and 215,252.54

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Solution

The fourth proportional to 396,540.65, 547,226.37 and 215,252.54 is: 297,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540.65 : 547,226.37 = 215,252.54 : x
  2. Step 2: Convert to fraction form
    396,540.65/547,226.37 = 215,252.54/x
  3. Step 3: Cross multiply
    396,540.65x = 547,226.37 × 215,252.54
  4. Step 4: Simplify right side
    396,540.65x = 117,791,863,361.35
  5. Step 5: Solve for x
    x = 117,791,863,361.35/396,540.65
  6. Step 6: Final answer
    x = 297,048.65

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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.