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Finding the Fourth Proportional to 379,879.22, 568,854.30 and 227,980.68

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Solution

The fourth proportional to 379,879.22, 568,854.30 and 227,980.68 is: 341,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,879.22 : 568,854.30 = 227,980.68 : x
  2. Step 2: Convert to fraction form
    379,879.22/568,854.30 = 227,980.68/x
  3. Step 3: Cross multiply
    379,879.22x = 568,854.30 × 227,980.68
  4. Step 4: Simplify right side
    379,879.22x = 129,687,790,134.92
  5. Step 5: Solve for x
    x = 129,687,790,134.92/379,879.22
  6. Step 6: Final answer
    x = 341,392.17

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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.