Home / 396,545.26-547,233.16-215,257.32

Finding the Fourth Proportional to 396,545.26, 547,233.16 and 215,257.32

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Solution

The fourth proportional to 396,545.26, 547,233.16 and 215,257.32 is: 297,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,545.26 : 547,233.16 = 215,257.32 : x
  2. Step 2: Convert to fraction form
    396,545.26/547,233.16 = 215,257.32/x
  3. Step 3: Cross multiply
    396,545.26x = 547,233.16 × 215,257.32
  4. Step 4: Simplify right side
    396,545.26x = 117,795,939,624.28
  5. Step 5: Solve for x
    x = 117,795,939,624.28/396,545.26
  6. Step 6: Final answer
    x = 297,055.47

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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.