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Finding the Fourth Proportional to 641.20, 962.38 and 333.26

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Solution

The fourth proportional to 641.20, 962.38 and 333.26 is: 500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.20 : 962.38 = 333.26 : x
  2. Step 2: Convert to fraction form
    641.20/962.38 = 333.26/x
  3. Step 3: Cross multiply
    641.20x = 962.38 × 333.26
  4. Step 4: Simplify right side
    641.20x = 320,722.76
  5. Step 5: Solve for x
    x = 320,722.76/641.20
  6. Step 6: Final answer
    x = 500.19

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1.5x scale

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.