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Finding the Fourth Proportional to 297.22, 444.18 and 238.80

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Solution

The fourth proportional to 297.22, 444.18 and 238.80 is: 356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.22 : 444.18 = 238.80 : x
  2. Step 2: Convert to fraction form
    297.22/444.18 = 238.80/x
  3. Step 3: Cross multiply
    297.22x = 444.18 × 238.80
  4. Step 4: Simplify right side
    297.22x = 106,070.25
  5. Step 5: Solve for x
    x = 106,070.25/297.22
  6. Step 6: Final answer
    x = 356.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.