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Finding the Fourth Proportional to 396,179.11, 594,119.67 and 143,397.13

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Solution

The fourth proportional to 396,179.11, 594,119.67 and 143,397.13 is: 215,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,179.11 : 594,119.67 = 143,397.13 : x
  2. Step 2: Convert to fraction form
    396,179.11/594,119.67 = 143,397.13/x
  3. Step 3: Cross multiply
    396,179.11x = 594,119.67 × 143,397.13
  4. Step 4: Simplify right side
    396,179.11x = 85,195,055,554.55
  5. Step 5: Solve for x
    x = 85,195,055,554.55/396,179.11
  6. Step 6: Final answer
    x = 215,041.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.