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Finding the Third Proportional to 241.75 and 400.25

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Solution

The third proportional to 241.75 and 400.25 is: 662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.75 : 400.25 = 400.25 : x
  2. Step 2: Convert to fraction form
    241.75/400.25 = 400.25/x
  3. Step 3: Cross multiply
    241.75x = 400.25 × 400.25
  4. Step 4: Simplify right side
    241.75x = 160,200.06
  5. Step 5: Solve for x
    x = 160,200.06/241.75
  6. Step 6: Final answer
    x = 662.67

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.