Home / 379,065.76-568,408.50-126,257.38

Finding the Fourth Proportional to 379,065.76, 568,408.50 and 126,257.38

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Solution

The fourth proportional to 379,065.76, 568,408.50 and 126,257.38 is: 189,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,065.76 : 568,408.50 = 126,257.38 : x
  2. Step 2: Convert to fraction form
    379,065.76/568,408.50 = 126,257.38/x
  3. Step 3: Cross multiply
    379,065.76x = 568,408.50 × 126,257.38
  4. Step 4: Simplify right side
    379,065.76x = 71,765,767,979.73
  5. Step 5: Solve for x
    x = 71,765,767,979.73/379,065.76
  6. Step 6: Final answer
    x = 189,322.74

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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.