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Finding the Fourth Proportional to 216.47, 299.02 and 167.97

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Solution

The fourth proportional to 216.47, 299.02 and 167.97 is: 232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.47 : 299.02 = 167.97 : x
  2. Step 2: Convert to fraction form
    216.47/299.02 = 167.97/x
  3. Step 3: Cross multiply
    216.47x = 299.02 × 167.97
  4. Step 4: Simplify right side
    216.47x = 50,226.39
  5. Step 5: Solve for x
    x = 50,226.39/216.47
  6. Step 6: Final answer
    x = 232.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.