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Finding the Fourth Proportional to 181.88, 250.62 and 140.18

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Solution

The fourth proportional to 181.88, 250.62 and 140.18 is: 193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.88 : 250.62 = 140.18 : x
  2. Step 2: Convert to fraction form
    181.88/250.62 = 140.18/x
  3. Step 3: Cross multiply
    181.88x = 250.62 × 140.18
  4. Step 4: Simplify right side
    181.88x = 35,131.91
  5. Step 5: Solve for x
    x = 35,131.91/181.88
  6. Step 6: Final answer
    x = 193.16

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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.