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Finding the Fourth Proportional to 835.74, 1,253.52 and 219.44

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Solution

The fourth proportional to 835.74, 1,253.52 and 219.44 is: 329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.74 : 1,253.52 = 219.44 : x
  2. Step 2: Convert to fraction form
    835.74/1,253.52 = 219.44/x
  3. Step 3: Cross multiply
    835.74x = 1,253.52 × 219.44
  4. Step 4: Simplify right side
    835.74x = 275,072.43
  5. Step 5: Solve for x
    x = 275,072.43/835.74
  6. Step 6: Final answer
    x = 329.14

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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.