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Finding the Fourth Proportional to 247,996.38, 372,042.46 and 105,839.58

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Solution

The fourth proportional to 247,996.38, 372,042.46 and 105,839.58 is: 158,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,996.38 : 372,042.46 = 105,839.58 : x
  2. Step 2: Convert to fraction form
    247,996.38/372,042.46 = 105,839.58/x
  3. Step 3: Cross multiply
    247,996.38x = 372,042.46 × 105,839.58
  4. Step 4: Simplify right side
    247,996.38x = 39,376,817,708.57
  5. Step 5: Solve for x
    x = 39,376,817,708.57/247,996.38
  6. Step 6: Final answer
    x = 158,779.81

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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.