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Finding the Fourth Proportional to 219.63, 303.09 and 132.28

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Solution

The fourth proportional to 219.63, 303.09 and 132.28 is: 182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.63 : 303.09 = 132.28 : x
  2. Step 2: Convert to fraction form
    219.63/303.09 = 132.28/x
  3. Step 3: Cross multiply
    219.63x = 303.09 × 132.28
  4. Step 4: Simplify right side
    219.63x = 40,092.75
  5. Step 5: Solve for x
    x = 40,092.75/219.63
  6. Step 6: Final answer
    x = 182.55

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Why These Related Problems?

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