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Finding the Fourth Proportional to 379,065.89, 568,408.67 and 126,257.51

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Solution

The fourth proportional to 379,065.89, 568,408.67 and 126,257.51 is: 189,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,065.89 : 568,408.67 = 126,257.51 : x
  2. Step 2: Convert to fraction form
    379,065.89/568,408.67 = 126,257.51/x
  3. Step 3: Cross multiply
    379,065.89x = 568,408.67 × 126,257.51
  4. Step 4: Simplify right side
    379,065.89x = 71,765,859,863.28
  5. Step 5: Solve for x
    x = 71,765,859,863.28/379,065.89
  6. Step 6: Final answer
    x = 189,322.92

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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.