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Finding the Fourth Proportional to 225,995.67, 338,862.29 and 85,677.75

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Solution

The fourth proportional to 225,995.67, 338,862.29 and 85,677.75 is: 128,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,995.67 : 338,862.29 = 85,677.75 : x
  2. Step 2: Convert to fraction form
    225,995.67/338,862.29 = 85,677.75/x
  3. Step 3: Cross multiply
    225,995.67x = 338,862.29 × 85,677.75
  4. Step 4: Simplify right side
    225,995.67x = 29,032,958,138.66
  5. Step 5: Solve for x
    x = 29,032,958,138.66/225,995.67
  6. Step 6: Final answer
    x = 128,466.88

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1.5x scale

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.