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Finding the Fourth Proportional to 241.92, 363.15 and 139.19

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Solution

The fourth proportional to 241.92, 363.15 and 139.19 is: 208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.92 : 363.15 = 139.19 : x
  2. Step 2: Convert to fraction form
    241.92/363.15 = 139.19/x
  3. Step 3: Cross multiply
    241.92x = 363.15 × 139.19
  4. Step 4: Simplify right side
    241.92x = 50,545.03
  5. Step 5: Solve for x
    x = 50,545.03/241.92
  6. Step 6: Final answer
    x = 208.93

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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.