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Finding the Fourth Proportional to 329.36, 454.90 and 303.04

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Solution

The fourth proportional to 329.36, 454.90 and 303.04 is: 418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.36 : 454.90 = 303.04 : x
  2. Step 2: Convert to fraction form
    329.36/454.90 = 303.04/x
  3. Step 3: Cross multiply
    329.36x = 454.90 × 303.04
  4. Step 4: Simplify right side
    329.36x = 137,852.90
  5. Step 5: Solve for x
    x = 137,852.90/329.36
  6. Step 6: Final answer
    x = 418.55

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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.