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Finding the Fourth Proportional to 216.00, 298.51 and 163.51

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Solution

The fourth proportional to 216.00, 298.51 and 163.51 is: 225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.00 : 298.51 = 163.51 : x
  2. Step 2: Convert to fraction form
    216.00/298.51 = 163.51/x
  3. Step 3: Cross multiply
    216.00x = 298.51 × 163.51
  4. Step 4: Simplify right side
    216.00x = 48,810.14
  5. Step 5: Solve for x
    x = 48,810.14/216.00
  6. Step 6: Final answer
    x = 225.97

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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.