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Finding the Fourth Proportional to 164.70, 226.82 and 154.27

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Solution

The fourth proportional to 164.70, 226.82 and 154.27 is: 212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.70 : 226.82 = 154.27 : x
  2. Step 2: Convert to fraction form
    164.70/226.82 = 154.27/x
  3. Step 3: Cross multiply
    164.70x = 226.82 × 154.27
  4. Step 4: Simplify right side
    164.70x = 34,991.52
  5. Step 5: Solve for x
    x = 34,991.52/164.70
  6. Step 6: Final answer
    x = 212.46

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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.