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Finding the Fourth Proportional to 148.24, 203.24 and 145.84

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Solution

The fourth proportional to 148.24, 203.24 and 145.84 is: 199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.24 : 203.24 = 145.84 : x
  2. Step 2: Convert to fraction form
    148.24/203.24 = 145.84/x
  3. Step 3: Cross multiply
    148.24x = 203.24 × 145.84
  4. Step 4: Simplify right side
    148.24x = 29,640.52
  5. Step 5: Solve for x
    x = 29,640.52/148.24
  6. Step 6: Final answer
    x = 199.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.