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Finding the Fourth Proportional to 322,960.80, 445,224.02 and 227,170.20

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Solution

The fourth proportional to 322,960.80, 445,224.02 and 227,170.20 is: 313,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,960.80 : 445,224.02 = 227,170.20 : x
  2. Step 2: Convert to fraction form
    322,960.80/445,224.02 = 227,170.20/x
  3. Step 3: Cross multiply
    322,960.80x = 445,224.02 × 227,170.20
  4. Step 4: Simplify right side
    322,960.80x = 101,141,628,532.35
  5. Step 5: Solve for x
    x = 101,141,628,532.35/322,960.80
  6. Step 6: Final answer
    x = 313,169.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.