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Finding the Fourth Proportional to 308.04, 425.04 and 214.96

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Solution

The fourth proportional to 308.04, 425.04 and 214.96 is: 296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.04 : 425.04 = 214.96 : x
  2. Step 2: Convert to fraction form
    308.04/425.04 = 214.96/x
  3. Step 3: Cross multiply
    308.04x = 425.04 × 214.96
  4. Step 4: Simplify right side
    308.04x = 91,366.60
  5. Step 5: Solve for x
    x = 91,366.60/308.04
  6. Step 6: Final answer
    x = 296.61

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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.