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Finding the Fourth Proportional to 254,042.80, 381,015.56 and 127,648.04

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Solution

The fourth proportional to 254,042.80, 381,015.56 and 127,648.04 is: 191,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,042.80 : 381,015.56 = 127,648.04 : x
  2. Step 2: Convert to fraction form
    254,042.80/381,015.56 = 127,648.04/x
  3. Step 3: Cross multiply
    254,042.80x = 381,015.56 × 127,648.04
  4. Step 4: Simplify right side
    254,042.80x = 48,635,887,857.54
  5. Step 5: Solve for x
    x = 48,635,887,857.54/254,042.80
  6. Step 6: Final answer
    x = 191,447.62

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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.