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Finding the Fourth Proportional to 252,765.44, 379,147.08 and 102,972.32

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Solution

The fourth proportional to 252,765.44, 379,147.08 and 102,972.32 is: 154,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,765.44 : 379,147.08 = 102,972.32 : x
  2. Step 2: Convert to fraction form
    252,765.44/379,147.08 = 102,972.32/x
  3. Step 3: Cross multiply
    252,765.44x = 379,147.08 × 102,972.32
  4. Step 4: Simplify right side
    252,765.44x = 39,041,654,448.83
  5. Step 5: Solve for x
    x = 39,041,654,448.83/252,765.44
  6. Step 6: Final answer
    x = 154,458.04

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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.