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Finding the Fourth Proportional to 163.26, 224.07 and 145.37

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Solution

The fourth proportional to 163.26, 224.07 and 145.37 is: 199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.26 : 224.07 = 145.37 : x
  2. Step 2: Convert to fraction form
    163.26/224.07 = 145.37/x
  3. Step 3: Cross multiply
    163.26x = 224.07 × 145.37
  4. Step 4: Simplify right side
    163.26x = 32,571.94
  5. Step 5: Solve for x
    x = 32,571.94/163.26
  6. Step 6: Final answer
    x = 199.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.