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Finding the Fourth Proportional to 242.92, 363.74 and 197.64

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Solution

The fourth proportional to 242.92, 363.74 and 197.64 is: 295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.92 : 363.74 = 197.64 : x
  2. Step 2: Convert to fraction form
    242.92/363.74 = 197.64/x
  3. Step 3: Cross multiply
    242.92x = 363.74 × 197.64
  4. Step 4: Simplify right side
    242.92x = 71,889.57
  5. Step 5: Solve for x
    x = 71,889.57/242.92
  6. Step 6: Final answer
    x = 295.94

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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.