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Finding the Fourth Proportional to 269,480.20, 404,256.30 and 91,942.60

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Solution

The fourth proportional to 269,480.20, 404,256.30 and 91,942.60 is: 137,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,480.20 : 404,256.30 = 91,942.60 : x
  2. Step 2: Convert to fraction form
    269,480.20/404,256.30 = 91,942.60/x
  3. Step 3: Cross multiply
    269,480.20x = 404,256.30 × 91,942.60
  4. Step 4: Simplify right side
    269,480.20x = 37,168,375,288.38
  5. Step 5: Solve for x
    x = 37,168,375,288.38/269,480.20
  6. Step 6: Final answer
    x = 137,926.18

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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.