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Finding the Fourth Proportional to 308.79, 463.37 and 199.17

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Solution

The fourth proportional to 308.79, 463.37 and 199.17 is: 298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.79 : 463.37 = 199.17 : x
  2. Step 2: Convert to fraction form
    308.79/463.37 = 199.17/x
  3. Step 3: Cross multiply
    308.79x = 463.37 × 199.17
  4. Step 4: Simplify right side
    308.79x = 92,288.41
  5. Step 5: Solve for x
    x = 92,288.41/308.79
  6. Step 6: Final answer
    x = 298.87

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