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Finding the Fourth Proportional to 339.25, 468.26 and 222.97

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Solution

The fourth proportional to 339.25, 468.26 and 222.97 is: 307.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.25 : 468.26 = 222.97 : x
  2. Step 2: Convert to fraction form
    339.25/468.26 = 222.97/x
  3. Step 3: Cross multiply
    339.25x = 468.26 × 222.97
  4. Step 4: Simplify right side
    339.25x = 104,406.82
  5. Step 5: Solve for x
    x = 104,406.82/339.25
  6. Step 6: Final answer
    x = 307.76

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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.