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Finding the Fourth Proportional to 366.87, 549.82 and 220.15

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Solution

The fourth proportional to 366.87, 549.82 and 220.15 is: 329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.87 : 549.82 = 220.15 : x
  2. Step 2: Convert to fraction form
    366.87/549.82 = 220.15/x
  3. Step 3: Cross multiply
    366.87x = 549.82 × 220.15
  4. Step 4: Simplify right side
    366.87x = 121,039.02
  5. Step 5: Solve for x
    x = 121,039.02/366.87
  6. Step 6: Final answer
    x = 329.92

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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.