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Finding the Fourth Proportional to 241.85, 363.29 and 139.34

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Solution

The fourth proportional to 241.85, 363.29 and 139.34 is: 209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.85 : 363.29 = 139.34 : x
  2. Step 2: Convert to fraction form
    241.85/363.29 = 139.34/x
  3. Step 3: Cross multiply
    241.85x = 363.29 × 139.34
  4. Step 4: Simplify right side
    241.85x = 50,619.36
  5. Step 5: Solve for x
    x = 50,619.36/241.85
  6. Step 6: Final answer
    x = 209.30

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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.