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Finding the Fourth Proportional to 302.73, 456.18 and 249.81

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Solution

The fourth proportional to 302.73, 456.18 and 249.81 is: 376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.73 : 456.18 = 249.81 : x
  2. Step 2: Convert to fraction form
    302.73/456.18 = 249.81/x
  3. Step 3: Cross multiply
    302.73x = 456.18 × 249.81
  4. Step 4: Simplify right side
    302.73x = 113,958.33
  5. Step 5: Solve for x
    x = 113,958.33/302.73
  6. Step 6: Final answer
    x = 376.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.