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Finding the Fourth Proportional to 308.44, 463.74 and 254.44

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Solution

The fourth proportional to 308.44, 463.74 and 254.44 is: 382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.44 : 463.74 = 254.44 : x
  2. Step 2: Convert to fraction form
    308.44/463.74 = 254.44/x
  3. Step 3: Cross multiply
    308.44x = 463.74 × 254.44
  4. Step 4: Simplify right side
    308.44x = 117,994.01
  5. Step 5: Solve for x
    x = 117,994.01/308.44
  6. Step 6: Final answer
    x = 382.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.