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Finding the Third Proportional to 611.06 and 914.25

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Solution

The third proportional to 611.06 and 914.25 is: 1,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.06 : 914.25 = 914.25 : x
  2. Step 2: Convert to fraction form
    611.06/914.25 = 914.25/x
  3. Step 3: Cross multiply
    611.06x = 914.25 × 914.25
  4. Step 4: Simplify right side
    611.06x = 835,853.06
  5. Step 5: Solve for x
    x = 835,853.06/611.06
  6. Step 6: Final answer
    x = 1,367.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.