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Finding the Third Proportional to 655.13 and 1,418.81

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Solution

The third proportional to 655.13 and 1,418.81 is: 3,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.13 : 1,418.81 = 1,418.81 : x
  2. Step 2: Convert to fraction form
    655.13/1,418.81 = 1,418.81/x
  3. Step 3: Cross multiply
    655.13x = 1,418.81 × 1,418.81
  4. Step 4: Simplify right side
    655.13x = 2,013,028.91
  5. Step 5: Solve for x
    x = 2,013,028.91/655.13
  6. Step 6: Final answer
    x = 3,072.74

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.