Home / 396,515.44-547,191.80-215,227.36

Finding the Fourth Proportional to 396,515.44, 547,191.80 and 215,227.36

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Solution

The fourth proportional to 396,515.44, 547,191.80 and 215,227.36 is: 297,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,515.44 : 547,191.80 = 215,227.36 : x
  2. Step 2: Convert to fraction form
    396,515.44/547,191.80 = 215,227.36/x
  3. Step 3: Cross multiply
    396,515.44x = 547,191.80 × 215,227.36
  4. Step 4: Simplify right side
    396,515.44x = 117,770,646,527.65
  5. Step 5: Solve for x
    x = 117,770,646,527.65/396,515.44
  6. Step 6: Final answer
    x = 297,014.02

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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.