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Finding the Fourth Proportional to 192.52, 288.78 and 119.44

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Solution

The fourth proportional to 192.52, 288.78 and 119.44 is: 179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.52 : 288.78 = 119.44 : x
  2. Step 2: Convert to fraction form
    192.52/288.78 = 119.44/x
  3. Step 3: Cross multiply
    192.52x = 288.78 × 119.44
  4. Step 4: Simplify right side
    192.52x = 34,491.88
  5. Step 5: Solve for x
    x = 34,491.88/192.52
  6. Step 6: Final answer
    x = 179.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.