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Finding the Fourth Proportional to 192.60, 265.92 and 171.81

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Solution

The fourth proportional to 192.60, 265.92 and 171.81 is: 237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.60 : 265.92 = 171.81 : x
  2. Step 2: Convert to fraction form
    192.60/265.92 = 171.81/x
  3. Step 3: Cross multiply
    192.60x = 265.92 × 171.81
  4. Step 4: Simplify right side
    192.60x = 45,687.72
  5. Step 5: Solve for x
    x = 45,687.72/192.60
  6. Step 6: Final answer
    x = 237.22

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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.