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Finding the Fourth Proportional to 146.28, 201.92 and 88.06

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Solution

The fourth proportional to 146.28, 201.92 and 88.06 is: 121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.28 : 201.92 = 88.06 : x
  2. Step 2: Convert to fraction form
    146.28/201.92 = 88.06/x
  3. Step 3: Cross multiply
    146.28x = 201.92 × 88.06
  4. Step 4: Simplify right side
    146.28x = 17,781.08
  5. Step 5: Solve for x
    x = 17,781.08/146.28
  6. Step 6: Final answer
    x = 121.56

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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.