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Finding the Third Proportional to 608.91 and 1,261.69

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Solution

The third proportional to 608.91 and 1,261.69 is: 2,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.91 : 1,261.69 = 1,261.69 : x
  2. Step 2: Convert to fraction form
    608.91/1,261.69 = 1,261.69/x
  3. Step 3: Cross multiply
    608.91x = 1,261.69 × 1,261.69
  4. Step 4: Simplify right side
    608.91x = 1,591,855.35
  5. Step 5: Solve for x
    x = 1,591,855.35/608.91
  6. Step 6: Final answer
    x = 2,614.29

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.