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Finding the Fourth Proportional to 330.09, 455.55 and 182.76

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Solution

The fourth proportional to 330.09, 455.55 and 182.76 is: 252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.09 : 455.55 = 182.76 : x
  2. Step 2: Convert to fraction form
    330.09/455.55 = 182.76/x
  3. Step 3: Cross multiply
    330.09x = 455.55 × 182.76
  4. Step 4: Simplify right side
    330.09x = 83,255.30
  5. Step 5: Solve for x
    x = 83,255.30/330.09
  6. Step 6: Final answer
    x = 252.22

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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.