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Finding the Fourth Proportional to 269,527.20, 404,217.90 and 79,987.20

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Solution

The fourth proportional to 269,527.20, 404,217.90 and 79,987.20 is: 119,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,527.20 : 404,217.90 = 79,987.20 : x
  2. Step 2: Convert to fraction form
    269,527.20/404,217.90 = 79,987.20/x
  3. Step 3: Cross multiply
    269,527.20x = 404,217.90 × 79,987.20
  4. Step 4: Simplify right side
    269,527.20x = 32,332,258,010.88
  5. Step 5: Solve for x
    x = 32,332,258,010.88/269,527.20
  6. Step 6: Final answer
    x = 119,959.17

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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.