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Finding the Fourth Proportional to 329.52, 452.49 and 317.38

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Solution

The fourth proportional to 329.52, 452.49 and 317.38 is: 435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.52 : 452.49 = 317.38 : x
  2. Step 2: Convert to fraction form
    329.52/452.49 = 317.38/x
  3. Step 3: Cross multiply
    329.52x = 452.49 × 317.38
  4. Step 4: Simplify right side
    329.52x = 143,611.28
  5. Step 5: Solve for x
    x = 143,611.28/329.52
  6. Step 6: Final answer
    x = 435.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.