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Finding the Fourth Proportional to 250,508.85, 345,309.53 and 189,836.61

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Solution

The fourth proportional to 250,508.85, 345,309.53 and 189,836.61 is: 261,676.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,508.85 : 345,309.53 = 189,836.61 : x
  2. Step 2: Convert to fraction form
    250,508.85/345,309.53 = 189,836.61/x
  3. Step 3: Cross multiply
    250,508.85x = 345,309.53 × 189,836.61
  4. Step 4: Simplify right side
    250,508.85x = 65,552,389,626.71
  5. Step 5: Solve for x
    x = 65,552,389,626.71/250,508.85
  6. Step 6: Final answer
    x = 261,676.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.