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Finding the Fourth Proportional to 167.06, 230.44 and 155.33

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Solution

The fourth proportional to 167.06, 230.44 and 155.33 is: 214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.06 : 230.44 = 155.33 : x
  2. Step 2: Convert to fraction form
    167.06/230.44 = 155.33/x
  3. Step 3: Cross multiply
    167.06x = 230.44 × 155.33
  4. Step 4: Simplify right side
    167.06x = 35,794.25
  5. Step 5: Solve for x
    x = 35,794.25/167.06
  6. Step 6: Final answer
    x = 214.26

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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.