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Finding the Fourth Proportional to 146.22, 201.77 and 90.23

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Solution

The fourth proportional to 146.22, 201.77 and 90.23 is: 124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.22 : 201.77 = 90.23 : x
  2. Step 2: Convert to fraction form
    146.22/201.77 = 90.23/x
  3. Step 3: Cross multiply
    146.22x = 201.77 × 90.23
  4. Step 4: Simplify right side
    146.22x = 18,205.47
  5. Step 5: Solve for x
    x = 18,205.47/146.22
  6. Step 6: Final answer
    x = 124.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.