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Finding the Fourth Proportional to 181.58, 249.98 and 163.13

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Solution

The fourth proportional to 181.58, 249.98 and 163.13 is: 224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.58 : 249.98 = 163.13 : x
  2. Step 2: Convert to fraction form
    181.58/249.98 = 163.13/x
  3. Step 3: Cross multiply
    181.58x = 249.98 × 163.13
  4. Step 4: Simplify right side
    181.58x = 40,778.40
  5. Step 5: Solve for x
    x = 40,778.40/181.58
  6. Step 6: Final answer
    x = 224.57

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Why These Related Problems?

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