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Finding the Fourth Proportional to 204.87, 305.66 and 179.16

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Solution

The fourth proportional to 204.87, 305.66 and 179.16 is: 267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.87 : 305.66 = 179.16 : x
  2. Step 2: Convert to fraction form
    204.87/305.66 = 179.16/x
  3. Step 3: Cross multiply
    204.87x = 305.66 × 179.16
  4. Step 4: Simplify right side
    204.87x = 54,762.05
  5. Step 5: Solve for x
    x = 54,762.05/204.87
  6. Step 6: Final answer
    x = 267.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.