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Finding the Fourth Proportional to 254,963.52, 382,504.32 and 86,474.88

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Solution

The fourth proportional to 254,963.52, 382,504.32 and 86,474.88 is: 129,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,963.52 : 382,504.32 = 86,474.88 : x
  2. Step 2: Convert to fraction form
    254,963.52/382,504.32 = 86,474.88/x
  3. Step 3: Cross multiply
    254,963.52x = 382,504.32 × 86,474.88
  4. Step 4: Simplify right side
    254,963.52x = 33,077,015,171.48
  5. Step 5: Solve for x
    x = 33,077,015,171.48/254,963.52
  6. Step 6: Final answer
    x = 129,732.34

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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.