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Finding the Fourth Proportional to 222.60, 335.22 and 201.18

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Solution

The fourth proportional to 222.60, 335.22 and 201.18 is: 302.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.60 : 335.22 = 201.18 : x
  2. Step 2: Convert to fraction form
    222.60/335.22 = 201.18/x
  3. Step 3: Cross multiply
    222.60x = 335.22 × 201.18
  4. Step 4: Simplify right side
    222.60x = 67,439.56
  5. Step 5: Solve for x
    x = 67,439.56/222.60
  6. Step 6: Final answer
    x = 302.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.