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Finding the Fourth Proportional to 379,056.51, 568,394.62 and 126,248.12

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Solution

The fourth proportional to 379,056.51, 568,394.62 and 126,248.12 is: 189,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,056.51 : 568,394.62 = 126,248.12 : x
  2. Step 2: Convert to fraction form
    379,056.51/568,394.62 = 126,248.12/x
  3. Step 3: Cross multiply
    379,056.51x = 568,394.62 × 126,248.12
  4. Step 4: Simplify right side
    379,056.51x = 71,758,753,771.91
  5. Step 5: Solve for x
    x = 71,758,753,771.91/379,056.51
  6. Step 6: Final answer
    x = 189,308.85

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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.