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Finding the Fourth Proportional to 218,534.30, 327,850.77 and 66,744.98

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Solution

The fourth proportional to 218,534.30, 327,850.77 and 66,744.98 is: 100,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,534.30 : 327,850.77 = 66,744.98 : x
  2. Step 2: Convert to fraction form
    218,534.30/327,850.77 = 66,744.98/x
  3. Step 3: Cross multiply
    218,534.30x = 327,850.77 × 66,744.98
  4. Step 4: Simplify right side
    218,534.30x = 21,882,393,086.63
  5. Step 5: Solve for x
    x = 21,882,393,086.63/218,534.30
  6. Step 6: Final answer
    x = 100,132.53

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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.