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Finding the Fourth Proportional to 164.49, 226.84 and 142.53

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Solution

The fourth proportional to 164.49, 226.84 and 142.53 is: 196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.49 : 226.84 = 142.53 : x
  2. Step 2: Convert to fraction form
    164.49/226.84 = 142.53/x
  3. Step 3: Cross multiply
    164.49x = 226.84 × 142.53
  4. Step 4: Simplify right side
    164.49x = 32,331.51
  5. Step 5: Solve for x
    x = 32,331.51/164.49
  6. Step 6: Final answer
    x = 196.56

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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.