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Finding the Fourth Proportional to 181.33, 250.26 and 111.36

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Solution

The fourth proportional to 181.33, 250.26 and 111.36 is: 153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.33 : 250.26 = 111.36 : x
  2. Step 2: Convert to fraction form
    181.33/250.26 = 111.36/x
  3. Step 3: Cross multiply
    181.33x = 250.26 × 111.36
  4. Step 4: Simplify right side
    181.33x = 27,869.47
  5. Step 5: Solve for x
    x = 27,869.47/181.33
  6. Step 6: Final answer
    x = 153.70

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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.