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Finding the Fourth Proportional to 241.99, 363.06 and 139.26

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Solution

The fourth proportional to 241.99, 363.06 and 139.26 is: 208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.99 : 363.06 = 139.26 : x
  2. Step 2: Convert to fraction form
    241.99/363.06 = 139.26/x
  3. Step 3: Cross multiply
    241.99x = 363.06 × 139.26
  4. Step 4: Simplify right side
    241.99x = 50,559.74
  5. Step 5: Solve for x
    x = 50,559.74/241.99
  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.