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Finding the Fourth Proportional to 223.20, 334.17 and 168.08

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Solution

The fourth proportional to 223.20, 334.17 and 168.08 is: 251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.20 : 334.17 = 168.08 : x
  2. Step 2: Convert to fraction form
    223.20/334.17 = 168.08/x
  3. Step 3: Cross multiply
    223.20x = 334.17 × 168.08
  4. Step 4: Simplify right side
    223.20x = 56,165.62
  5. Step 5: Solve for x
    x = 56,165.62/223.20
  6. Step 6: Final answer
    x = 251.64

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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.