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Finding the Third Proportional to 814.22 and 1,438.59

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Solution

The third proportional to 814.22 and 1,438.59 is: 2,541.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.22 : 1,438.59 = 1,438.59 : x
  2. Step 2: Convert to fraction form
    814.22/1,438.59 = 1,438.59/x
  3. Step 3: Cross multiply
    814.22x = 1,438.59 × 1,438.59
  4. Step 4: Simplify right side
    814.22x = 2,069,551.98
  5. Step 5: Solve for x
    x = 2,069,551.98/814.22
  6. Step 6: Final answer
    x = 2,541.76

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.