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Finding the Fourth Proportional to 329.50, 454.14 and 303.34

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Solution

The fourth proportional to 329.50, 454.14 and 303.34 is: 418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.50 : 454.14 = 303.34 : x
  2. Step 2: Convert to fraction form
    329.50/454.14 = 303.34/x
  3. Step 3: Cross multiply
    329.50x = 454.14 × 303.34
  4. Step 4: Simplify right side
    329.50x = 137,758.83
  5. Step 5: Solve for x
    x = 137,758.83/329.50
  6. Step 6: Final answer
    x = 418.08

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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.