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Finding the Fourth Proportional to 275,059.86, 379,706.96 and 173,234.96

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Solution

The fourth proportional to 275,059.86, 379,706.96 and 173,234.96 is: 239,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,059.86 : 379,706.96 = 173,234.96 : x
  2. Step 2: Convert to fraction form
    275,059.86/379,706.96 = 173,234.96/x
  3. Step 3: Cross multiply
    275,059.86x = 379,706.96 × 173,234.96
  4. Step 4: Simplify right side
    275,059.86x = 65,778,517,262.61
  5. Step 5: Solve for x
    x = 65,778,517,262.61/275,059.86
  6. Step 6: Final answer
    x = 239,142.55

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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.