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Finding the Fourth Proportional to 252,375.58, 378,731.72 and 130,908.06

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Solution

The fourth proportional to 252,375.58, 378,731.72 and 130,908.06 is: 196,449.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,375.58 : 378,731.72 = 130,908.06 : x
  2. Step 2: Convert to fraction form
    252,375.58/378,731.72 = 130,908.06/x
  3. Step 3: Cross multiply
    252,375.58x = 378,731.72 × 130,908.06
  4. Step 4: Simplify right side
    252,375.58x = 49,579,034,725.66
  5. Step 5: Solve for x
    x = 49,579,034,725.66/252,375.58
  6. Step 6: Final answer
    x = 196,449.41

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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.