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Finding the Fourth Proportional to 148.23, 221.94 and 101.25

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Solution

The fourth proportional to 148.23, 221.94 and 101.25 is: 151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.23 : 221.94 = 101.25 : x
  2. Step 2: Convert to fraction form
    148.23/221.94 = 101.25/x
  3. Step 3: Cross multiply
    148.23x = 221.94 × 101.25
  4. Step 4: Simplify right side
    148.23x = 22,471.43
  5. Step 5: Solve for x
    x = 22,471.43/148.23
  6. Step 6: Final answer
    x = 151.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.