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Finding the Third Proportional to 181.41 and 265.78

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Solution

The third proportional to 181.41 and 265.78 is: 389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.41 : 265.78 = 265.78 : x
  2. Step 2: Convert to fraction form
    181.41/265.78 = 265.78/x
  3. Step 3: Cross multiply
    181.41x = 265.78 × 265.78
  4. Step 4: Simplify right side
    181.41x = 70,639.67
  5. Step 5: Solve for x
    x = 70,639.67/181.41
  6. Step 6: Final answer
    x = 389.40

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.