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Finding the Fourth Proportional to 269,532.80, 404,558.40 and 136,563.20

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Solution

The fourth proportional to 269,532.80, 404,558.40 and 136,563.20 is: 204,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,532.80 : 404,558.40 = 136,563.20 : x
  2. Step 2: Convert to fraction form
    269,532.80/404,558.40 = 136,563.20/x
  3. Step 3: Cross multiply
    269,532.80x = 404,558.40 × 136,563.20
  4. Step 4: Simplify right side
    269,532.80x = 55,247,789,690.88
  5. Step 5: Solve for x
    x = 55,247,789,690.88/269,532.80
  6. Step 6: Final answer
    x = 204,976.13

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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.