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Finding the Fourth Proportional to 284.85, 427.41 and 163.16

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Solution

The fourth proportional to 284.85, 427.41 and 163.16 is: 244.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.85 : 427.41 = 163.16 : x
  2. Step 2: Convert to fraction form
    284.85/427.41 = 163.16/x
  3. Step 3: Cross multiply
    284.85x = 427.41 × 163.16
  4. Step 4: Simplify right side
    284.85x = 69,734.08
  5. Step 5: Solve for x
    x = 69,734.08/284.85
  6. Step 6: Final answer
    x = 244.81

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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.