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Finding the Third Proportional to 127.13 and 181.76

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Solution

The third proportional to 127.13 and 181.76 is: 259.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.13 : 181.76 = 181.76 : x
  2. Step 2: Convert to fraction form
    127.13/181.76 = 181.76/x
  3. Step 3: Cross multiply
    127.13x = 181.76 × 181.76
  4. Step 4: Simplify right side
    127.13x = 33,035.90
  5. Step 5: Solve for x
    x = 33,035.90/127.13
  6. Step 6: Final answer
    x = 259.87

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.