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Finding the Fourth Proportional to 192.91, 289.23 and 174.43

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Solution

The fourth proportional to 192.91, 289.23 and 174.43 is: 261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.91 : 289.23 = 174.43 : x
  2. Step 2: Convert to fraction form
    192.91/289.23 = 174.43/x
  3. Step 3: Cross multiply
    192.91x = 289.23 × 174.43
  4. Step 4: Simplify right side
    192.91x = 50,450.39
  5. Step 5: Solve for x
    x = 50,450.39/192.91
  6. Step 6: Final answer
    x = 261.52

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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.