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Finding the Fourth Proportional to 181.29, 271.58 and 109.29

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Solution

The fourth proportional to 181.29, 271.58 and 109.29 is: 163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.29 : 271.58 = 109.29 : x
  2. Step 2: Convert to fraction form
    181.29/271.58 = 109.29/x
  3. Step 3: Cross multiply
    181.29x = 271.58 × 109.29
  4. Step 4: Simplify right side
    181.29x = 29,680.43
  5. Step 5: Solve for x
    x = 29,680.43/181.29
  6. Step 6: Final answer
    x = 163.72

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