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Finding the Fourth Proportional to 396,181.04, 594,213.16 and 129,969.68

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Solution

The fourth proportional to 396,181.04, 594,213.16 and 129,969.68 is: 194,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,181.04 : 594,213.16 = 129,969.68 : x
  2. Step 2: Convert to fraction form
    396,181.04/594,213.16 = 129,969.68/x
  3. Step 3: Cross multiply
    396,181.04x = 594,213.16 × 129,969.68
  4. Step 4: Simplify right side
    396,181.04x = 77,229,694,256.99
  5. Step 5: Solve for x
    x = 77,229,694,256.99/396,181.04
  6. Step 6: Final answer
    x = 194,935.36

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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.