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Finding the Third Proportional to 132.42 and 190.08

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Solution

The third proportional to 132.42 and 190.08 is: 272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.42 : 190.08 = 190.08 : x
  2. Step 2: Convert to fraction form
    132.42/190.08 = 190.08/x
  3. Step 3: Cross multiply
    132.42x = 190.08 × 190.08
  4. Step 4: Simplify right side
    132.42x = 36,130.81
  5. Step 5: Solve for x
    x = 36,130.81/132.42
  6. Step 6: Final answer
    x = 272.86

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.