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Finding the Fourth Proportional to 308.16, 462.20 and 110.48

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Solution

The fourth proportional to 308.16, 462.20 and 110.48 is: 165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.16 : 462.20 = 110.48 : x
  2. Step 2: Convert to fraction form
    308.16/462.20 = 110.48/x
  3. Step 3: Cross multiply
    308.16x = 462.20 × 110.48
  4. Step 4: Simplify right side
    308.16x = 51,060.99
  5. Step 5: Solve for x
    x = 51,060.99/308.16
  6. Step 6: Final answer
    x = 165.70

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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.