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Finding the Fourth Proportional to 192.42, 265.52 and 126.02

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Solution

The fourth proportional to 192.42, 265.52 and 126.02 is: 173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.42 : 265.52 = 126.02 : x
  2. Step 2: Convert to fraction form
    192.42/265.52 = 126.02/x
  3. Step 3: Cross multiply
    192.42x = 265.52 × 126.02
  4. Step 4: Simplify right side
    192.42x = 33,458.87
  5. Step 5: Solve for x
    x = 33,458.87/192.42
  6. Step 6: Final answer
    x = 173.88

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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.