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Finding the Fourth Proportional to 329.21, 454.23 and 246.38

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Solution

The fourth proportional to 329.21, 454.23 and 246.38 is: 339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.21 : 454.23 = 246.38 : x
  2. Step 2: Convert to fraction form
    329.21/454.23 = 246.38/x
  3. Step 3: Cross multiply
    329.21x = 454.23 × 246.38
  4. Step 4: Simplify right side
    329.21x = 111,914.32
  5. Step 5: Solve for x
    x = 111,914.32/329.21
  6. Step 6: Final answer
    x = 339.95

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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.