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Finding the Fourth Proportional to 218,600.72, 327,912.83 and 68,852.73

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Solution

The fourth proportional to 218,600.72, 327,912.83 and 68,852.73 is: 103,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,600.72 : 327,912.83 = 68,852.73 : x
  2. Step 2: Convert to fraction form
    218,600.72/327,912.83 = 68,852.73/x
  3. Step 3: Cross multiply
    218,600.72x = 327,912.83 × 68,852.73
  4. Step 4: Simplify right side
    218,600.72x = 22,577,692,231.79
  5. Step 5: Solve for x
    x = 22,577,692,231.79/218,600.72
  6. Step 6: Final answer
    x = 103,282.79

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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.