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Finding the Fourth Proportional to 269,688.80, 404,144.40 and 119,806.40

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Solution

The fourth proportional to 269,688.80, 404,144.40 and 119,806.40 is: 179,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,688.80 : 404,144.40 = 119,806.40 : x
  2. Step 2: Convert to fraction form
    269,688.80/404,144.40 = 119,806.40/x
  3. Step 3: Cross multiply
    269,688.80x = 404,144.40 × 119,806.40
  4. Step 4: Simplify right side
    269,688.80x = 48,419,085,644.16
  5. Step 5: Solve for x
    x = 48,419,085,644.16/269,688.80
  6. Step 6: Final answer
    x = 179,536.88

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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.