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Finding the Fourth Proportional to 215,255.62, 322,932.57 and 65,517.13

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Solution

The fourth proportional to 215,255.62, 322,932.57 and 65,517.13 is: 98,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,255.62 : 322,932.57 = 65,517.13 : x
  2. Step 2: Convert to fraction form
    215,255.62/322,932.57 = 65,517.13/x
  3. Step 3: Cross multiply
    215,255.62x = 322,932.57 × 65,517.13
  4. Step 4: Simplify right side
    215,255.62x = 21,157,615,169.92
  5. Step 5: Solve for x
    x = 21,157,615,169.92/215,255.62
  6. Step 6: Final answer
    x = 98,290.65

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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.