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Finding the Fourth Proportional to 308.45, 462.38 and 113.41

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Solution

The fourth proportional to 308.45, 462.38 and 113.41 is: 170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.45 : 462.38 = 113.41 : x
  2. Step 2: Convert to fraction form
    308.45/462.38 = 113.41/x
  3. Step 3: Cross multiply
    308.45x = 462.38 × 113.41
  4. Step 4: Simplify right side
    308.45x = 52,436.20
  5. Step 5: Solve for x
    x = 52,436.20/308.45
  6. Step 6: Final answer
    x = 170.00

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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.