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Finding the Fourth Proportional to 192.39, 264.81 and 160.97

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Solution

The fourth proportional to 192.39, 264.81 and 160.97 is: 221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.39 : 264.81 = 160.97 : x
  2. Step 2: Convert to fraction form
    192.39/264.81 = 160.97/x
  3. Step 3: Cross multiply
    192.39x = 264.81 × 160.97
  4. Step 4: Simplify right side
    192.39x = 42,625.14
  5. Step 5: Solve for x
    x = 42,625.14/192.39
  6. Step 6: Final answer
    x = 221.56

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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.