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Finding the Third Proportional to 181.50 and 387.94

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Solution

The third proportional to 181.50 and 387.94 is: 829.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.50 : 387.94 = 387.94 : x
  2. Step 2: Convert to fraction form
    181.50/387.94 = 387.94/x
  3. Step 3: Cross multiply
    181.50x = 387.94 × 387.94
  4. Step 4: Simplify right side
    181.50x = 150,495.50
  5. Step 5: Solve for x
    x = 150,495.50/181.50
  6. Step 6: Final answer
    x = 829.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.