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Finding the Fourth Proportional to 324,515.52, 486,641.79 and 134,847

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Solution

The fourth proportional to 324,515.52, 486,641.79 and 134,847 is: 202,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,515.52 : 486,641.79 = 134,847 : x
  2. Step 2: Convert to fraction form
    324,515.52/486,641.79 = 134,847/x
  3. Step 3: Cross multiply
    324,515.52x = 486,641.79 × 134,847
  4. Step 4: Simplify right side
    324,515.52x = 65,622,185,456.13
  5. Step 5: Solve for x
    x = 65,622,185,456.13/324,515.52
  6. Step 6: Final answer
    x = 202,215.86

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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.