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Finding the Fourth Proportional to 238.99, 330.13 and 192.54

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Solution

The fourth proportional to 238.99, 330.13 and 192.54 is: 265.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.99 : 330.13 = 192.54 : x
  2. Step 2: Convert to fraction form
    238.99/330.13 = 192.54/x
  3. Step 3: Cross multiply
    238.99x = 330.13 × 192.54
  4. Step 4: Simplify right side
    238.99x = 63,562.27
  5. Step 5: Solve for x
    x = 63,562.27/238.99
  6. Step 6: Final answer
    x = 265.96

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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.