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Finding the Fourth Proportional to 283.26, 391.28 and 236.79

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Solution

The fourth proportional to 283.26, 391.28 and 236.79 is: 327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.26 : 391.28 = 236.79 : x
  2. Step 2: Convert to fraction form
    283.26/391.28 = 236.79/x
  3. Step 3: Cross multiply
    283.26x = 391.28 × 236.79
  4. Step 4: Simplify right side
    283.26x = 92,650.01
  5. Step 5: Solve for x
    x = 92,650.01/283.26
  6. Step 6: Final answer
    x = 327.08

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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.