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Finding the Fourth Proportional to 329.15, 454.74 and 250.73

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Solution

The fourth proportional to 329.15, 454.74 and 250.73 is: 346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.15 : 454.74 = 250.73 : x
  2. Step 2: Convert to fraction form
    329.15/454.74 = 250.73/x
  3. Step 3: Cross multiply
    329.15x = 454.74 × 250.73
  4. Step 4: Simplify right side
    329.15x = 114,016.96
  5. Step 5: Solve for x
    x = 114,016.96/329.15
  6. Step 6: Final answer
    x = 346.40

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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.