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Finding the Fourth Proportional to 225,930.73, 338,659.65 and 76,119.28

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Solution

The fourth proportional to 225,930.73, 338,659.65 and 76,119.28 is: 114,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,930.73 : 338,659.65 = 76,119.28 : x
  2. Step 2: Convert to fraction form
    225,930.73/338,659.65 = 76,119.28/x
  3. Step 3: Cross multiply
    225,930.73x = 338,659.65 × 76,119.28
  4. Step 4: Simplify right side
    225,930.73x = 25,778,528,723.05
  5. Step 5: Solve for x
    x = 25,778,528,723.05/225,930.73
  6. Step 6: Final answer
    x = 114,099.26

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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.