Home / 218,128.38-327,192.66-68,380.44

Finding the Fourth Proportional to 218,128.38, 327,192.66 and 68,380.44

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Solution

The fourth proportional to 218,128.38, 327,192.66 and 68,380.44 is: 102,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,128.38 : 327,192.66 = 68,380.44 : x
  2. Step 2: Convert to fraction form
    218,128.38/327,192.66 = 68,380.44/x
  3. Step 3: Cross multiply
    218,128.38x = 327,192.66 × 68,380.44
  4. Step 4: Simplify right side
    218,128.38x = 22,373,578,055.57
  5. Step 5: Solve for x
    x = 22,373,578,055.57/218,128.38
  6. Step 6: Final answer
    x = 102,570.69

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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.