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Finding the Fourth Proportional to 269,443.40, 404,165.10 and 198,584.60

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Solution

The fourth proportional to 269,443.40, 404,165.10 and 198,584.60 is: 297,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,443.40 : 404,165.10 = 198,584.60 : x
  2. Step 2: Convert to fraction form
    269,443.40/404,165.10 = 198,584.60/x
  3. Step 3: Cross multiply
    269,443.40x = 404,165.10 × 198,584.60
  4. Step 4: Simplify right side
    269,443.40x = 80,260,964,717.46
  5. Step 5: Solve for x
    x = 80,260,964,717.46/269,443.40
  6. Step 6: Final answer
    x = 297,876.90

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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.