Home / 215,960.43-324,002.89-66,222.79

Finding the Fourth Proportional to 215,960.43, 324,002.89 and 66,222.79

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Solution

The fourth proportional to 215,960.43, 324,002.89 and 66,222.79 is: 99,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,960.43 : 324,002.89 = 66,222.79 : x
  2. Step 2: Convert to fraction form
    215,960.43/324,002.89 = 66,222.79/x
  3. Step 3: Cross multiply
    215,960.43x = 324,002.89 × 66,222.79
  4. Step 4: Simplify right side
    215,960.43x = 21,456,375,155.39
  5. Step 5: Solve for x
    x = 21,456,375,155.39/215,960.43
  6. Step 6: Final answer
    x = 99,353.27

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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.