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Finding the Fourth Proportional to 329.36, 452.53 and 315.04

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Solution

The fourth proportional to 329.36, 452.53 and 315.04 is: 432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.36 : 452.53 = 315.04 : x
  2. Step 2: Convert to fraction form
    329.36/452.53 = 315.04/x
  3. Step 3: Cross multiply
    329.36x = 452.53 × 315.04
  4. Step 4: Simplify right side
    329.36x = 142,565.05
  5. Step 5: Solve for x
    x = 142,565.05/329.36
  6. Step 6: Final answer
    x = 432.85

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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.