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Finding the Fourth Proportional to 269,687.20, 404,206.80 and 111,834.40

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Solution

The fourth proportional to 269,687.20, 404,206.80 and 111,834.40 is: 167,617.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,687.20 : 404,206.80 = 111,834.40 : x
  2. Step 2: Convert to fraction form
    269,687.20/404,206.80 = 111,834.40/x
  3. Step 3: Cross multiply
    269,687.20x = 404,206.80 × 111,834.40
  4. Step 4: Simplify right side
    269,687.20x = 45,204,224,953.92
  5. Step 5: Solve for x
    x = 45,204,224,953.92/269,687.20
  6. Step 6: Final answer
    x = 167,617.24

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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.