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Finding the Fourth Proportional to 379,101.82, 568,462.56 and 126,293.42

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Solution

The fourth proportional to 379,101.82, 568,462.56 and 126,293.42 is: 189,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,101.82 : 568,462.56 = 126,293.42 : x
  2. Step 2: Convert to fraction form
    379,101.82/568,462.56 = 126,293.42/x
  3. Step 3: Cross multiply
    379,101.82x = 568,462.56 × 126,293.42
  4. Step 4: Simplify right side
    379,101.82x = 71,793,080,844.36
  5. Step 5: Solve for x
    x = 71,793,080,844.36/379,101.82
  6. Step 6: Final answer
    x = 189,376.78

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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.