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Finding the Fourth Proportional to 239.37, 330.28 and 134.46

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Solution

The fourth proportional to 239.37, 330.28 and 134.46 is: 185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.37 : 330.28 = 134.46 : x
  2. Step 2: Convert to fraction form
    239.37/330.28 = 134.46/x
  3. Step 3: Cross multiply
    239.37x = 330.28 × 134.46
  4. Step 4: Simplify right side
    239.37x = 44,409.45
  5. Step 5: Solve for x
    x = 44,409.45/239.37
  6. Step 6: Final answer
    x = 185.53

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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.