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Finding the Fourth Proportional to 549.18, 823.82 and 224.55

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Solution

The fourth proportional to 549.18, 823.82 and 224.55 is: 336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.18 : 823.82 = 224.55 : x
  2. Step 2: Convert to fraction form
    549.18/823.82 = 224.55/x
  3. Step 3: Cross multiply
    549.18x = 823.82 × 224.55
  4. Step 4: Simplify right side
    549.18x = 184,987.66
  5. Step 5: Solve for x
    x = 184,987.66/549.18
  6. Step 6: Final answer
    x = 336.84

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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.