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Finding the Fourth Proportional to 217.22, 299.03 and 168.08

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Solution

The fourth proportional to 217.22, 299.03 and 168.08 is: 231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217.22 : 299.03 = 168.08 : x
  2. Step 2: Convert to fraction form
    217.22/299.03 = 168.08/x
  3. Step 3: Cross multiply
    217.22x = 299.03 × 168.08
  4. Step 4: Simplify right side
    217.22x = 50,258.63
  5. Step 5: Solve for x
    x = 50,258.63/217.22
  6. Step 6: Final answer
    x = 231.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.