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Finding the Fourth Proportional to 241.57, 363.71 and 212.86

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Solution

The fourth proportional to 241.57, 363.71 and 212.86 is: 320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.57 : 363.71 = 212.86 : x
  2. Step 2: Convert to fraction form
    241.57/363.71 = 212.86/x
  3. Step 3: Cross multiply
    241.57x = 363.71 × 212.86
  4. Step 4: Simplify right side
    241.57x = 77,420.30
  5. Step 5: Solve for x
    x = 77,420.30/241.57
  6. Step 6: Final answer
    x = 320.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.