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Finding the Fourth Proportional to 269,555.40, 404,276.40 and 136,310.40

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Solution

The fourth proportional to 269,555.40, 404,276.40 and 136,310.40 is: 204,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,555.40 : 404,276.40 = 136,310.40 : x
  2. Step 2: Convert to fraction form
    269,555.40/404,276.40 = 136,310.40/x
  3. Step 3: Cross multiply
    269,555.40x = 404,276.40 × 136,310.40
  4. Step 4: Simplify right side
    269,555.40x = 55,107,077,794.56
  5. Step 5: Solve for x
    x = 55,107,077,794.56/269,555.40
  6. Step 6: Final answer
    x = 204,436.93

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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.