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Finding the Fourth Proportional to 339.90, 468.39 and 241.38

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Solution

The fourth proportional to 339.90, 468.39 and 241.38 is: 332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.90 : 468.39 = 241.38 : x
  2. Step 2: Convert to fraction form
    339.90/468.39 = 241.38/x
  3. Step 3: Cross multiply
    339.90x = 468.39 × 241.38
  4. Step 4: Simplify right side
    339.90x = 113,059.98
  5. Step 5: Solve for x
    x = 113,059.98/339.90
  6. Step 6: Final answer
    x = 332.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.