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Finding the Fourth Proportional to 835.21, 1,252.42 and 250.06

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Solution

The fourth proportional to 835.21, 1,252.42 and 250.06 is: 374.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.21 : 1,252.42 = 250.06 : x
  2. Step 2: Convert to fraction form
    835.21/1,252.42 = 250.06/x
  3. Step 3: Cross multiply
    835.21x = 1,252.42 × 250.06
  4. Step 4: Simplify right side
    835.21x = 313,180.15
  5. Step 5: Solve for x
    x = 313,180.15/835.21
  6. Step 6: Final answer
    x = 374.97

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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.