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Finding the Fourth Proportional to 796.25, 1,194.45 and 219.13

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Solution

The fourth proportional to 796.25, 1,194.45 and 219.13 is: 328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.25 : 1,194.45 = 219.13 : x
  2. Step 2: Convert to fraction form
    796.25/1,194.45 = 219.13/x
  3. Step 3: Cross multiply
    796.25x = 1,194.45 × 219.13
  4. Step 4: Simplify right side
    796.25x = 261,732.76
  5. Step 5: Solve for x
    x = 261,732.76/796.25
  6. Step 6: Final answer
    x = 328.71

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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.