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Finding the Fourth Proportional to 220.73, 330.89 and 163.01

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Solution

The fourth proportional to 220.73, 330.89 and 163.01 is: 244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.73 : 330.89 = 163.01 : x
  2. Step 2: Convert to fraction form
    220.73/330.89 = 163.01/x
  3. Step 3: Cross multiply
    220.73x = 330.89 × 163.01
  4. Step 4: Simplify right side
    220.73x = 53,938.39
  5. Step 5: Solve for x
    x = 53,938.39/220.73
  6. Step 6: Final answer
    x = 244.37

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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.