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Finding the Third Proportional to 266.91 and 577.69

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Solution

The third proportional to 266.91 and 577.69 is: 1,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.91 : 577.69 = 577.69 : x
  2. Step 2: Convert to fraction form
    266.91/577.69 = 577.69/x
  3. Step 3: Cross multiply
    266.91x = 577.69 × 577.69
  4. Step 4: Simplify right side
    266.91x = 333,722.85
  5. Step 5: Solve for x
    x = 333,722.85/266.91
  6. Step 6: Final answer
    x = 1,250.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.