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Finding the Fourth Proportional to 181.92, 273.84 and 162.78

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Solution

The fourth proportional to 181.92, 273.84 and 162.78 is: 245.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.92 : 273.84 = 162.78 : x
  2. Step 2: Convert to fraction form
    181.92/273.84 = 162.78/x
  3. Step 3: Cross multiply
    181.92x = 273.84 × 162.78
  4. Step 4: Simplify right side
    181.92x = 44,575.68
  5. Step 5: Solve for x
    x = 44,575.68/181.92
  6. Step 6: Final answer
    x = 245.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.