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Finding the Fourth Proportional to 181.19, 271.53 and 104.05

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Solution

The fourth proportional to 181.19, 271.53 and 104.05 is: 155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.19 : 271.53 = 104.05 : x
  2. Step 2: Convert to fraction form
    181.19/271.53 = 104.05/x
  3. Step 3: Cross multiply
    181.19x = 271.53 × 104.05
  4. Step 4: Simplify right side
    181.19x = 28,252.70
  5. Step 5: Solve for x
    x = 28,252.70/181.19
  6. Step 6: Final answer
    x = 155.93

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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.