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Finding the Fourth Proportional to 132.28, 183.63 and 130.88

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Solution

The fourth proportional to 132.28, 183.63 and 130.88 is: 181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.28 : 183.63 = 130.88 : x
  2. Step 2: Convert to fraction form
    132.28/183.63 = 130.88/x
  3. Step 3: Cross multiply
    132.28x = 183.63 × 130.88
  4. Step 4: Simplify right side
    132.28x = 24,033.49
  5. Step 5: Solve for x
    x = 24,033.49/132.28
  6. Step 6: Final answer
    x = 181.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.