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Finding the Fourth Proportional to 308.23, 425.28 and 182.17

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Solution

The fourth proportional to 308.23, 425.28 and 182.17 is: 251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.23 : 425.28 = 182.17 : x
  2. Step 2: Convert to fraction form
    308.23/425.28 = 182.17/x
  3. Step 3: Cross multiply
    308.23x = 425.28 × 182.17
  4. Step 4: Simplify right side
    308.23x = 77,473.26
  5. Step 5: Solve for x
    x = 77,473.26/308.23
  6. Step 6: Final answer
    x = 251.35

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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.