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Finding the Third Proportional to 361.69 and 744.19

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Solution

The third proportional to 361.69 and 744.19 is: 1,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.69 : 744.19 = 744.19 : x
  2. Step 2: Convert to fraction form
    361.69/744.19 = 744.19/x
  3. Step 3: Cross multiply
    361.69x = 744.19 × 744.19
  4. Step 4: Simplify right side
    361.69x = 553,815.04
  5. Step 5: Solve for x
    x = 553,815.04/361.69
  6. Step 6: Final answer
    x = 1,531.20

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.