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Finding the Fourth Proportional to 192.73, 266.20 and 191.38

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Solution

The fourth proportional to 192.73, 266.20 and 191.38 is: 264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.73 : 266.20 = 191.38 : x
  2. Step 2: Convert to fraction form
    192.73/266.20 = 191.38/x
  3. Step 3: Cross multiply
    192.73x = 266.20 × 191.38
  4. Step 4: Simplify right side
    192.73x = 50,944.21
  5. Step 5: Solve for x
    x = 50,944.21/192.73
  6. Step 6: Final answer
    x = 264.33

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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.