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Finding the Fourth Proportional to 444.20, 666.27 and 252.23

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Solution

The fourth proportional to 444.20, 666.27 and 252.23 is: 378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.20 : 666.27 = 252.23 : x
  2. Step 2: Convert to fraction form
    444.20/666.27 = 252.23/x
  3. Step 3: Cross multiply
    444.20x = 666.27 × 252.23
  4. Step 4: Simplify right side
    444.20x = 168,049.95
  5. Step 5: Solve for x
    x = 168,049.95/444.20
  6. Step 6: Final answer
    x = 378.32

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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.