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Finding the Third Proportional to 135.75 and 361.13

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Solution

The third proportional to 135.75 and 361.13 is: 960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.75 : 361.13 = 361.13 : x
  2. Step 2: Convert to fraction form
    135.75/361.13 = 361.13/x
  3. Step 3: Cross multiply
    135.75x = 361.13 × 361.13
  4. Step 4: Simplify right side
    135.75x = 130,411.27
  5. Step 5: Solve for x
    x = 130,411.27/135.75
  6. Step 6: Final answer
    x = 960.67

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Why These Related Problems?

These problems maintain the same ratio (2.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.