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Finding the Fourth Proportional to 263.90, 363.88 and 181.06

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Solution

The fourth proportional to 263.90, 363.88 and 181.06 is: 249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.90 : 363.88 = 181.06 : x
  2. Step 2: Convert to fraction form
    263.90/363.88 = 181.06/x
  3. Step 3: Cross multiply
    263.90x = 363.88 × 181.06
  4. Step 4: Simplify right side
    263.90x = 65,884.11
  5. Step 5: Solve for x
    x = 65,884.11/263.90
  6. Step 6: Final answer
    x = 249.66

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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.