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Finding the Fourth Proportional to 181.29, 249.76 and 148.75

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Solution

The fourth proportional to 181.29, 249.76 and 148.75 is: 204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.29 : 249.76 = 148.75 : x
  2. Step 2: Convert to fraction form
    181.29/249.76 = 148.75/x
  3. Step 3: Cross multiply
    181.29x = 249.76 × 148.75
  4. Step 4: Simplify right side
    181.29x = 37,151.43
  5. Step 5: Solve for x
    x = 37,151.43/181.29
  6. Step 6: Final answer
    x = 204.93

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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.