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Finding the Fourth Proportional to 547.98, 821.78 and 273.94

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Solution

The fourth proportional to 547.98, 821.78 and 273.94 is: 410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.98 : 821.78 = 273.94 : x
  2. Step 2: Convert to fraction form
    547.98/821.78 = 273.94/x
  3. Step 3: Cross multiply
    547.98x = 821.78 × 273.94
  4. Step 4: Simplify right side
    547.98x = 225,118.41
  5. Step 5: Solve for x
    x = 225,118.41/547.98
  6. Step 6: Final answer
    x = 410.82

Related Problems

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Double scale
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Similar ratio
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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.