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Finding the Fourth Proportional to 269,631.20, 404,446.80 and 218,892.80

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Solution

The fourth proportional to 269,631.20, 404,446.80 and 218,892.80 is: 328,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,631.20 : 404,446.80 = 218,892.80 : x
  2. Step 2: Convert to fraction form
    269,631.20/404,446.80 = 218,892.80/x
  3. Step 3: Cross multiply
    269,631.20x = 404,446.80 × 218,892.80
  4. Step 4: Simplify right side
    269,631.20x = 88,530,492,503.04
  5. Step 5: Solve for x
    x = 88,530,492,503.04/269,631.20
  6. Step 6: Final answer
    x = 328,339.20

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1.5x scale

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.