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Finding the Fourth Proportional to 147.76, 221.87 and 96.52

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Solution

The fourth proportional to 147.76, 221.87 and 96.52 is: 144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.76 : 221.87 = 96.52 : x
  2. Step 2: Convert to fraction form
    147.76/221.87 = 96.52/x
  3. Step 3: Cross multiply
    147.76x = 221.87 × 96.52
  4. Step 4: Simplify right side
    147.76x = 21,414.41
  5. Step 5: Solve for x
    x = 21,414.41/147.76
  6. Step 6: Final answer
    x = 144.93

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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.