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Finding the Fourth Proportional to 308.01, 462.15 and 161.87

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Solution

The fourth proportional to 308.01, 462.15 and 161.87 is: 242.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.01 : 462.15 = 161.87 : x
  2. Step 2: Convert to fraction form
    308.01/462.15 = 161.87/x
  3. Step 3: Cross multiply
    308.01x = 462.15 × 161.87
  4. Step 4: Simplify right side
    308.01x = 74,808.22
  5. Step 5: Solve for x
    x = 74,808.22/308.01
  6. Step 6: Final answer
    x = 242.88

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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.