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Finding the Fourth Proportional to 241.49, 361.33 and 143.63

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Solution

The fourth proportional to 241.49, 361.33 and 143.63 is: 214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.49 : 361.33 = 143.63 : x
  2. Step 2: Convert to fraction form
    241.49/361.33 = 143.63/x
  3. Step 3: Cross multiply
    241.49x = 361.33 × 143.63
  4. Step 4: Simplify right side
    241.49x = 51,898.37
  5. Step 5: Solve for x
    x = 51,898.37/241.49
  6. Step 6: Final answer
    x = 214.91

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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.