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Finding the Fourth Proportional to 547.55, 821.15 and 182.25

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Solution

The fourth proportional to 547.55, 821.15 and 182.25 is: 273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.55 : 821.15 = 182.25 : x
  2. Step 2: Convert to fraction form
    547.55/821.15 = 182.25/x
  3. Step 3: Cross multiply
    547.55x = 821.15 × 182.25
  4. Step 4: Simplify right side
    547.55x = 149,654.62
  5. Step 5: Solve for x
    x = 149,654.62/547.55
  6. Step 6: Final answer
    x = 273.32

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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.