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Finding the Fourth Proportional to 633.26, 948.59 and 320.71

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Solution

The fourth proportional to 633.26, 948.59 and 320.71 is: 480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.26 : 948.59 = 320.71 : x
  2. Step 2: Convert to fraction form
    633.26/948.59 = 320.71/x
  3. Step 3: Cross multiply
    633.26x = 948.59 × 320.71
  4. Step 4: Simplify right side
    633.26x = 304,220.73
  5. Step 5: Solve for x
    x = 304,220.73/633.26
  6. Step 6: Final answer
    x = 480.41

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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.