Home / 218,355.88-327,515-132,944.60

Finding the Fourth Proportional to 218,355.88, 327,515 and 132,944.60

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Solution

The fourth proportional to 218,355.88, 327,515 and 132,944.60 is: 199,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,355.88 : 327,515 = 132,944.60 : x
  2. Step 2: Convert to fraction form
    218,355.88/327,515 = 132,944.60/x
  3. Step 3: Cross multiply
    218,355.88x = 327,515 × 132,944.60
  4. Step 4: Simplify right side
    218,355.88x = 43,541,350,669
  5. Step 5: Solve for x
    x = 43,541,350,669/218,355.88
  6. Step 6: Final answer
    x = 199,405.44

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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.