Home / 254,906.10-382,390.31-86,474.61

Finding the Fourth Proportional to 254,906.10, 382,390.31 and 86,474.61

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Solution

The fourth proportional to 254,906.10, 382,390.31 and 86,474.61 is: 129,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,906.10 : 382,390.31 = 86,474.61 : x
  2. Step 2: Convert to fraction form
    254,906.10/382,390.31 = 86,474.61/x
  3. Step 3: Cross multiply
    254,906.10x = 382,390.31 × 86,474.61
  4. Step 4: Simplify right side
    254,906.10x = 33,067,053,141.22
  5. Step 5: Solve for x
    x = 33,067,053,141.22/254,906.10
  6. Step 6: Final answer
    x = 129,722.49

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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.