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Finding the Fourth Proportional to 308.50, 462.65 and 200.16

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Solution

The fourth proportional to 308.50, 462.65 and 200.16 is: 300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.50 : 462.65 = 200.16 : x
  2. Step 2: Convert to fraction form
    308.50/462.65 = 200.16/x
  3. Step 3: Cross multiply
    308.50x = 462.65 × 200.16
  4. Step 4: Simplify right side
    308.50x = 92,603.02
  5. Step 5: Solve for x
    x = 92,603.02/308.50
  6. Step 6: Final answer
    x = 300.17

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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.