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Finding the Fourth Proportional to 239,382.96, 330,348.40 and 131,954.78

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Solution

The fourth proportional to 239,382.96, 330,348.40 and 131,954.78 is: 182,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,382.96 : 330,348.40 = 131,954.78 : x
  2. Step 2: Convert to fraction form
    239,382.96/330,348.40 = 131,954.78/x
  3. Step 3: Cross multiply
    239,382.96x = 330,348.40 × 131,954.78
  4. Step 4: Simplify right side
    239,382.96x = 43,591,050,445.35
  5. Step 5: Solve for x
    x = 43,591,050,445.35/239,382.96
  6. Step 6: Final answer
    x = 182,097.55

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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.