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Finding the Fourth Proportional to 192.26, 288.09 and 140.82

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Solution

The fourth proportional to 192.26, 288.09 and 140.82 is: 211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.26 : 288.09 = 140.82 : x
  2. Step 2: Convert to fraction form
    192.26/288.09 = 140.82/x
  3. Step 3: Cross multiply
    192.26x = 288.09 × 140.82
  4. Step 4: Simplify right side
    192.26x = 40,568.83
  5. Step 5: Solve for x
    x = 40,568.83/192.26
  6. Step 6: Final answer
    x = 211.02

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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.