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Finding the Fourth Proportional to 269,631.40, 404,390.40 and 136,386.40

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Solution

The fourth proportional to 269,631.40, 404,390.40 and 136,386.40 is: 204,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,631.40 : 404,390.40 = 136,386.40 : x
  2. Step 2: Convert to fraction form
    269,631.40/404,390.40 = 136,386.40/x
  3. Step 3: Cross multiply
    269,631.40x = 404,390.40 × 136,386.40
  4. Step 4: Simplify right side
    269,631.40x = 55,153,350,850.56
  5. Step 5: Solve for x
    x = 55,153,350,850.56/269,631.40
  6. Step 6: Final answer
    x = 204,550.92

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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.