Home / 396,500.11-547,170.71-215,212.08

Finding the Fourth Proportional to 396,500.11, 547,170.71 and 215,212.08

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Solution

The fourth proportional to 396,500.11, 547,170.71 and 215,212.08 is: 296,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,500.11 : 547,170.71 = 215,212.08 : x
  2. Step 2: Convert to fraction form
    396,500.11/547,170.71 = 215,212.08/x
  3. Step 3: Cross multiply
    396,500.11x = 547,170.71 × 215,212.08
  4. Step 4: Simplify right side
    396,500.11x = 117,757,746,457.58
  5. Step 5: Solve for x
    x = 117,757,746,457.58/396,500.11
  6. Step 6: Final answer
    x = 296,992.97

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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.