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Finding the Fourth Proportional to 192.04, 265.02 and 122.09

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Solution

The fourth proportional to 192.04, 265.02 and 122.09 is: 168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.04 : 265.02 = 122.09 : x
  2. Step 2: Convert to fraction form
    192.04/265.02 = 122.09/x
  3. Step 3: Cross multiply
    192.04x = 265.02 × 122.09
  4. Step 4: Simplify right side
    192.04x = 32,354.97
  5. Step 5: Solve for x
    x = 32,354.97/192.04
  6. Step 6: Final answer
    x = 168.48

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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.