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Finding the Third Proportional to 181.50 and 395.75

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Solution

The third proportional to 181.50 and 395.75 is: 862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.50 : 395.75 = 395.75 : x
  2. Step 2: Convert to fraction form
    181.50/395.75 = 395.75/x
  3. Step 3: Cross multiply
    181.50x = 395.75 × 395.75
  4. Step 4: Simplify right side
    181.50x = 156,618.06
  5. Step 5: Solve for x
    x = 156,618.06/181.50
  6. Step 6: Final answer
    x = 862.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.