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Finding the Fourth Proportional to 511.20, 766.26 and 250.92

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Solution

The fourth proportional to 511.20, 766.26 and 250.92 is: 376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.20 : 766.26 = 250.92 : x
  2. Step 2: Convert to fraction form
    511.20/766.26 = 250.92/x
  3. Step 3: Cross multiply
    511.20x = 766.26 × 250.92
  4. Step 4: Simplify right side
    511.20x = 192,269.96
  5. Step 5: Solve for x
    x = 192,269.96/511.20
  6. Step 6: Final answer
    x = 376.11

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Double scale
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Similar ratio
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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.