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Finding the Fourth Proportional to 192.92, 266.19 and 126.50

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Solution

The fourth proportional to 192.92, 266.19 and 126.50 is: 174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.92 : 266.19 = 126.50 : x
  2. Step 2: Convert to fraction form
    192.92/266.19 = 126.50/x
  3. Step 3: Cross multiply
    192.92x = 266.19 × 126.50
  4. Step 4: Simplify right side
    192.92x = 33,673.04
  5. Step 5: Solve for x
    x = 33,673.04/192.92
  6. Step 6: Final answer
    x = 174.54

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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.