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Finding the Fourth Proportional to 269,397.70, 371,785.41 and 148,538.61

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Solution

The fourth proportional to 269,397.70, 371,785.41 and 148,538.61 is: 204,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,397.70 : 371,785.41 = 148,538.61 : x
  2. Step 2: Convert to fraction form
    269,397.70/371,785.41 = 148,538.61/x
  3. Step 3: Cross multiply
    269,397.70x = 371,785.41 × 148,538.61
  4. Step 4: Simplify right side
    269,397.70x = 55,224,488,019.68
  5. Step 5: Solve for x
    x = 55,224,488,019.68/269,397.70
  6. Step 6: Final answer
    x = 204,992.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.