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Finding the Fourth Proportional to 444.45, 667.09 and 225.23

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Solution

The fourth proportional to 444.45, 667.09 and 225.23 is: 338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.45 : 667.09 = 225.23 : x
  2. Step 2: Convert to fraction form
    444.45/667.09 = 225.23/x
  3. Step 3: Cross multiply
    444.45x = 667.09 × 225.23
  4. Step 4: Simplify right side
    444.45x = 150,248.68
  5. Step 5: Solve for x
    x = 150,248.68/444.45
  6. Step 6: Final answer
    x = 338.06

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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.