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Finding the Fourth Proportional to 269,578.40, 404,221.80 and 111,822.80

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Solution

The fourth proportional to 269,578.40, 404,221.80 and 111,822.80 is: 167,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,578.40 : 404,221.80 = 111,822.80 : x
  2. Step 2: Convert to fraction form
    269,578.40/404,221.80 = 111,822.80/x
  3. Step 3: Cross multiply
    269,578.40x = 404,221.80 × 111,822.80
  4. Step 4: Simplify right side
    269,578.40x = 45,201,213,497.04
  5. Step 5: Solve for x
    x = 45,201,213,497.04/269,578.40
  6. Step 6: Final answer
    x = 167,673.72

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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.