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Finding the Fourth Proportional to 242.43, 363.96 and 181.95

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Solution

The fourth proportional to 242.43, 363.96 and 181.95 is: 273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.43 : 363.96 = 181.95 : x
  2. Step 2: Convert to fraction form
    242.43/363.96 = 181.95/x
  3. Step 3: Cross multiply
    242.43x = 363.96 × 181.95
  4. Step 4: Simplify right side
    242.43x = 66,222.52
  5. Step 5: Solve for x
    x = 66,222.52/242.43
  6. Step 6: Final answer
    x = 273.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.