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Finding the Fourth Proportional to 339.75, 468.50 and 250.83

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Solution

The fourth proportional to 339.75, 468.50 and 250.83 is: 345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.75 : 468.50 = 250.83 : x
  2. Step 2: Convert to fraction form
    339.75/468.50 = 250.83/x
  3. Step 3: Cross multiply
    339.75x = 468.50 × 250.83
  4. Step 4: Simplify right side
    339.75x = 117,512.60
  5. Step 5: Solve for x
    x = 117,512.60/339.75
  6. Step 6: Final answer
    x = 345.88

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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.