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Finding the Third Proportional to 361.38 and 803.63

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Solution

The third proportional to 361.38 and 803.63 is: 1,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.38 : 803.63 = 803.63 : x
  2. Step 2: Convert to fraction form
    361.38/803.63 = 803.63/x
  3. Step 3: Cross multiply
    361.38x = 803.63 × 803.63
  4. Step 4: Simplify right side
    361.38x = 645,813.14
  5. Step 5: Solve for x
    x = 645,813.14/361.38
  6. Step 6: Final answer
    x = 1,787.10

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.