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Finding the Fourth Proportional to 329.10, 454.52 and 219.08

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Solution

The fourth proportional to 329.10, 454.52 and 219.08 is: 302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.10 : 454.52 = 219.08 : x
  2. Step 2: Convert to fraction form
    329.10/454.52 = 219.08/x
  3. Step 3: Cross multiply
    329.10x = 454.52 × 219.08
  4. Step 4: Simplify right side
    329.10x = 99,576.24
  5. Step 5: Solve for x
    x = 99,576.24/329.10
  6. Step 6: Final answer
    x = 302.57

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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.