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Finding the Fourth Proportional to 637.94, 956.91 and 329.69

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Solution

The fourth proportional to 637.94, 956.91 and 329.69 is: 494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.94 : 956.91 = 329.69 : x
  2. Step 2: Convert to fraction form
    637.94/956.91 = 329.69/x
  3. Step 3: Cross multiply
    637.94x = 956.91 × 329.69
  4. Step 4: Simplify right side
    637.94x = 315,483.66
  5. Step 5: Solve for x
    x = 315,483.66/637.94
  6. Step 6: Final answer
    x = 494.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.