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Finding the Fourth Proportional to 222.44, 333.78 and 168.66

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Solution

The fourth proportional to 222.44, 333.78 and 168.66 is: 253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.44 : 333.78 = 168.66 : x
  2. Step 2: Convert to fraction form
    222.44/333.78 = 168.66/x
  3. Step 3: Cross multiply
    222.44x = 333.78 × 168.66
  4. Step 4: Simplify right side
    222.44x = 56,295.33
  5. Step 5: Solve for x
    x = 56,295.33/222.44
  6. Step 6: Final answer
    x = 253.08

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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.