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Finding the Fourth Proportional to 218,601.85, 327,914.53 and 68,853.87

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Solution

The fourth proportional to 218,601.85, 327,914.53 and 68,853.87 is: 103,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,601.85 : 327,914.53 = 68,853.87 : x
  2. Step 2: Convert to fraction form
    218,601.85/327,914.53 = 68,853.87/x
  3. Step 3: Cross multiply
    218,601.85x = 327,914.53 × 68,853.87
  4. Step 4: Simplify right side
    218,601.85x = 22,578,184,419.73
  5. Step 5: Solve for x
    x = 22,578,184,419.73/218,601.85
  6. Step 6: Final answer
    x = 103,284.51

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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.