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Finding the Fourth Proportional to 225,995.08, 338,982.90 and 68,218.82

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Solution

The fourth proportional to 225,995.08, 338,982.90 and 68,218.82 is: 102,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,995.08 : 338,982.90 = 68,218.82 : x
  2. Step 2: Convert to fraction form
    225,995.08/338,982.90 = 68,218.82/x
  3. Step 3: Cross multiply
    225,995.08x = 338,982.90 × 68,218.82
  4. Step 4: Simplify right side
    225,995.08x = 23,125,013,097.08
  5. Step 5: Solve for x
    x = 23,125,013,097.08/225,995.08
  6. Step 6: Final answer
    x = 102,325.30

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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.