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Finding the Fourth Proportional to 146.15, 220.00 and 112.33

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Solution

The fourth proportional to 146.15, 220.00 and 112.33 is: 169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.15 : 220.00 = 112.33 : x
  2. Step 2: Convert to fraction form
    146.15/220.00 = 112.33/x
  3. Step 3: Cross multiply
    146.15x = 220.00 × 112.33
  4. Step 4: Simplify right side
    146.15x = 24,711.77
  5. Step 5: Solve for x
    x = 24,711.77/146.15
  6. Step 6: Final answer
    x = 169.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.