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Finding the Fourth Proportional to 246,179.16, 339,717.60 and 138,771

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Solution

The fourth proportional to 246,179.16, 339,717.60 and 138,771 is: 191,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,179.16 : 339,717.60 = 138,771 : x
  2. Step 2: Convert to fraction form
    246,179.16/339,717.60 = 138,771/x
  3. Step 3: Cross multiply
    246,179.16x = 339,717.60 × 138,771
  4. Step 4: Simplify right side
    246,179.16x = 47,142,951,069.60
  5. Step 5: Solve for x
    x = 47,142,951,069.60/246,179.16
  6. Step 6: Final answer
    x = 191,498.55

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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.