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Finding the Fourth Proportional to 181.00, 249.78 and 107.33

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Solution

The fourth proportional to 181.00, 249.78 and 107.33 is: 148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.00 : 249.78 = 107.33 : x
  2. Step 2: Convert to fraction form
    181.00/249.78 = 107.33/x
  3. Step 3: Cross multiply
    181.00x = 249.78 × 107.33
  4. Step 4: Simplify right side
    181.00x = 26,808.04
  5. Step 5: Solve for x
    x = 26,808.04/181.00
  6. Step 6: Final answer
    x = 148.11

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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.