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Finding the Fourth Proportional to 269,879.72, 372,382.92 and 149,017.61

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Solution

The fourth proportional to 269,879.72, 372,382.92 and 149,017.61 is: 205,616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,879.72 : 372,382.92 = 149,017.61 : x
  2. Step 2: Convert to fraction form
    269,879.72/372,382.92 = 149,017.61/x
  3. Step 3: Cross multiply
    269,879.72x = 372,382.92 × 149,017.61
  4. Step 4: Simplify right side
    269,879.72x = 55,491,612,743.22
  5. Step 5: Solve for x
    x = 55,491,612,743.22/269,879.72
  6. Step 6: Final answer
    x = 205,616.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.