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Finding the Fourth Proportional to 269,541.20, 404,238.90 and 80,001.20

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Solution

The fourth proportional to 269,541.20, 404,238.90 and 80,001.20 is: 119,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,541.20 : 404,238.90 = 80,001.20 : x
  2. Step 2: Convert to fraction form
    269,541.20/404,238.90 = 80,001.20/x
  3. Step 3: Cross multiply
    269,541.20x = 404,238.90 × 80,001.20
  4. Step 4: Simplify right side
    269,541.20x = 32,339,597,086.68
  5. Step 5: Solve for x
    x = 32,339,597,086.68/269,541.20
  6. Step 6: Final answer
    x = 119,980.16

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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.