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Finding the Third Proportional to 371.38 and 811.94

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Solution

The third proportional to 371.38 and 811.94 is: 1,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.38 : 811.94 = 811.94 : x
  2. Step 2: Convert to fraction form
    371.38/811.94 = 811.94/x
  3. Step 3: Cross multiply
    371.38x = 811.94 × 811.94
  4. Step 4: Simplify right side
    371.38x = 659,242.50
  5. Step 5: Solve for x
    x = 659,242.50/371.38
  6. Step 6: Final answer
    x = 1,775.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.