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Finding the Fourth Proportional to 547.34, 821.02 and 182.12

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Solution

The fourth proportional to 547.34, 821.02 and 182.12 is: 273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.34 : 821.02 = 182.12 : x
  2. Step 2: Convert to fraction form
    547.34/821.02 = 182.12/x
  3. Step 3: Cross multiply
    547.34x = 821.02 × 182.12
  4. Step 4: Simplify right side
    547.34x = 149,524.16
  5. Step 5: Solve for x
    x = 149,524.16/547.34
  6. Step 6: Final answer
    x = 273.18

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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.