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Finding the Fourth Proportional to 181.18, 249.87 and 153.52

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Solution

The fourth proportional to 181.18, 249.87 and 153.52 is: 211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.18 : 249.87 = 153.52 : x
  2. Step 2: Convert to fraction form
    181.18/249.87 = 153.52/x
  3. Step 3: Cross multiply
    181.18x = 249.87 × 153.52
  4. Step 4: Simplify right side
    181.18x = 38,360.04
  5. Step 5: Solve for x
    x = 38,360.04/181.18
  6. Step 6: Final answer
    x = 211.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.