Home / 218,128.31-327,199.74-60,343.55

Finding the Fourth Proportional to 218,128.31, 327,199.74 and 60,343.55

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Solution

The fourth proportional to 218,128.31, 327,199.74 and 60,343.55 is: 90,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,128.31 : 327,199.74 = 60,343.55 : x
  2. Step 2: Convert to fraction form
    218,128.31/327,199.74 = 60,343.55/x
  3. Step 3: Cross multiply
    218,128.31x = 327,199.74 × 60,343.55
  4. Step 4: Simplify right side
    218,128.31x = 19,744,392,234.68
  5. Step 5: Solve for x
    x = 19,744,392,234.68/218,128.31
  6. Step 6: Final answer
    x = 90,517.33

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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.