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Finding the Fourth Proportional to 329.79, 455.12 and 182.44

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Solution

The fourth proportional to 329.79, 455.12 and 182.44 is: 251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.79 : 455.12 = 182.44 : x
  2. Step 2: Convert to fraction form
    329.79/455.12 = 182.44/x
  3. Step 3: Cross multiply
    329.79x = 455.12 × 182.44
  4. Step 4: Simplify right side
    329.79x = 83,032.09
  5. Step 5: Solve for x
    x = 83,032.09/329.79
  6. Step 6: Final answer
    x = 251.77

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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.