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Finding the Fourth Proportional to 551.56, 827.22 and 166.72

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Solution

The fourth proportional to 551.56, 827.22 and 166.72 is: 250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.56 : 827.22 = 166.72 : x
  2. Step 2: Convert to fraction form
    551.56/827.22 = 166.72/x
  3. Step 3: Cross multiply
    551.56x = 827.22 × 166.72
  4. Step 4: Simplify right side
    551.56x = 137,914.12
  5. Step 5: Solve for x
    x = 137,914.12/551.56
  6. Step 6: Final answer
    x = 250.04

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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.