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Finding the Fourth Proportional to 146.32, 201.81 and 135.88

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Solution

The fourth proportional to 146.32, 201.81 and 135.88 is: 187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.32 : 201.81 = 135.88 : x
  2. Step 2: Convert to fraction form
    146.32/201.81 = 135.88/x
  3. Step 3: Cross multiply
    146.32x = 201.81 × 135.88
  4. Step 4: Simplify right side
    146.32x = 27,421.94
  5. Step 5: Solve for x
    x = 27,421.94/146.32
  6. Step 6: Final answer
    x = 187.41

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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.