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Finding the Fourth Proportional to 220.73, 332.66 and 220.73

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Solution

The fourth proportional to 220.73, 332.66 and 220.73 is: 332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.73 : 332.66 = 220.73 : x
  2. Step 2: Convert to fraction form
    220.73/332.66 = 220.73/x
  3. Step 3: Cross multiply
    220.73x = 332.66 × 220.73
  4. Step 4: Simplify right side
    220.73x = 73,425.27
  5. Step 5: Solve for x
    x = 73,425.27/220.73
  6. Step 6: Final answer
    x = 332.66

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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.