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Finding the Fourth Proportional to 218,559.20, 327,741.60 and 100,266.80

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Solution

The fourth proportional to 218,559.20, 327,741.60 and 100,266.80 is: 150,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,559.20 : 327,741.60 = 100,266.80 : x
  2. Step 2: Convert to fraction form
    218,559.20/327,741.60 = 100,266.80/x
  3. Step 3: Cross multiply
    218,559.20x = 327,741.60 × 100,266.80
  4. Step 4: Simplify right side
    218,559.20x = 32,861,601,458.88
  5. Step 5: Solve for x
    x = 32,861,601,458.88/218,559.20
  6. Step 6: Final answer
    x = 150,355.61

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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.