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Finding the Fourth Proportional to 192.08, 264.94 and 122.22

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Solution

The fourth proportional to 192.08, 264.94 and 122.22 is: 168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.08 : 264.94 = 122.22 : x
  2. Step 2: Convert to fraction form
    192.08/264.94 = 122.22/x
  3. Step 3: Cross multiply
    192.08x = 264.94 × 122.22
  4. Step 4: Simplify right side
    192.08x = 32,380.97
  5. Step 5: Solve for x
    x = 32,380.97/192.08
  6. Step 6: Final answer
    x = 168.58

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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.