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Finding the Fourth Proportional to 216.13, 323.77 and 167.35

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Solution

The fourth proportional to 216.13, 323.77 and 167.35 is: 250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.13 : 323.77 = 167.35 : x
  2. Step 2: Convert to fraction form
    216.13/323.77 = 167.35/x
  3. Step 3: Cross multiply
    216.13x = 323.77 × 167.35
  4. Step 4: Simplify right side
    216.13x = 54,183.07
  5. Step 5: Solve for x
    x = 54,183.07/216.13
  6. Step 6: Final answer
    x = 250.70

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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.