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Finding the Fourth Proportional to 218,352.91, 327,334.57 and 85,202.20

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Solution

The fourth proportional to 218,352.91, 327,334.57 and 85,202.20 is: 127,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,352.91 : 327,334.57 = 85,202.20 : x
  2. Step 2: Convert to fraction form
    218,352.91/327,334.57 = 85,202.20/x
  3. Step 3: Cross multiply
    218,352.91x = 327,334.57 × 85,202.20
  4. Step 4: Simplify right side
    218,352.91x = 27,889,625,500.05
  5. Step 5: Solve for x
    x = 27,889,625,500.05/218,352.91
  6. Step 6: Final answer
    x = 127,727.29

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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.