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Finding the Fourth Proportional to 836.26, 1,254.34 and 251.25

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Solution

The fourth proportional to 836.26, 1,254.34 and 251.25 is: 376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.26 : 1,254.34 = 251.25 : x
  2. Step 2: Convert to fraction form
    836.26/1,254.34 = 251.25/x
  3. Step 3: Cross multiply
    836.26x = 1,254.34 × 251.25
  4. Step 4: Simplify right side
    836.26x = 315,147.21
  5. Step 5: Solve for x
    x = 315,147.21/836.26
  6. Step 6: Final answer
    x = 376.85

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Double scale
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1.5x scale

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.