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Finding the Fourth Proportional to 181.04, 271.49 and 120.15

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Solution

The fourth proportional to 181.04, 271.49 and 120.15 is: 180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.04 : 271.49 = 120.15 : x
  2. Step 2: Convert to fraction form
    181.04/271.49 = 120.15/x
  3. Step 3: Cross multiply
    181.04x = 271.49 × 120.15
  4. Step 4: Simplify right side
    181.04x = 32,618.92
  5. Step 5: Solve for x
    x = 32,618.92/181.04
  6. Step 6: Final answer
    x = 180.18

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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.