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Finding the Fourth Proportional to 218,441.27, 327,705.66 and 68,719.25

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Solution

The fourth proportional to 218,441.27, 327,705.66 and 68,719.25 is: 103,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,441.27 : 327,705.66 = 68,719.25 : x
  2. Step 2: Convert to fraction form
    218,441.27/327,705.66 = 68,719.25/x
  3. Step 3: Cross multiply
    218,441.27x = 327,705.66 × 68,719.25
  4. Step 4: Simplify right side
    218,441.27x = 22,519,687,175.96
  5. Step 5: Solve for x
    x = 22,519,687,175.96/218,441.27
  6. Step 6: Final answer
    x = 103,092.64

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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.