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Finding the Fourth Proportional to 308.22, 425.89 and 246.56

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Solution

The fourth proportional to 308.22, 425.89 and 246.56 is: 340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.22 : 425.89 = 246.56 : x
  2. Step 2: Convert to fraction form
    308.22/425.89 = 246.56/x
  3. Step 3: Cross multiply
    308.22x = 425.89 × 246.56
  4. Step 4: Simplify right side
    308.22x = 105,007.44
  5. Step 5: Solve for x
    x = 105,007.44/308.22
  6. Step 6: Final answer
    x = 340.69

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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.