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Finding the Fourth Proportional to 163.01, 224.84 and 154.98

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Solution

The fourth proportional to 163.01, 224.84 and 154.98 is: 213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.01 : 224.84 = 154.98 : x
  2. Step 2: Convert to fraction form
    163.01/224.84 = 154.98/x
  3. Step 3: Cross multiply
    163.01x = 224.84 × 154.98
  4. Step 4: Simplify right side
    163.01x = 34,846.09
  5. Step 5: Solve for x
    x = 34,846.09/163.01
  6. Step 6: Final answer
    x = 213.76

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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.