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Finding the Fourth Proportional to 218,108.72, 327,162.57 and 68,360.42

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Solution

The fourth proportional to 218,108.72, 327,162.57 and 68,360.42 is: 102,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,108.72 : 327,162.57 = 68,360.42 : x
  2. Step 2: Convert to fraction form
    218,108.72/327,162.57 = 68,360.42/x
  3. Step 3: Cross multiply
    218,108.72x = 327,162.57 × 68,360.42
  4. Step 4: Simplify right side
    218,108.72x = 22,364,970,693.48
  5. Step 5: Solve for x
    x = 22,364,970,693.48/218,108.72
  6. Step 6: Final answer
    x = 102,540.47

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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.