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Finding the Fourth Proportional to 181.95, 273.11 and 79.27

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Solution

The fourth proportional to 181.95, 273.11 and 79.27 is: 118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.95 : 273.11 = 79.27 : x
  2. Step 2: Convert to fraction form
    181.95/273.11 = 79.27/x
  3. Step 3: Cross multiply
    181.95x = 273.11 × 79.27
  4. Step 4: Simplify right side
    181.95x = 21,649.43
  5. Step 5: Solve for x
    x = 21,649.43/181.95
  6. Step 6: Final answer
    x = 118.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.