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Finding the Fourth Proportional to 468.20, 701.49 and 331.01

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Solution

The fourth proportional to 468.20, 701.49 and 331.01 is: 495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.20 : 701.49 = 331.01 : x
  2. Step 2: Convert to fraction form
    468.20/701.49 = 331.01/x
  3. Step 3: Cross multiply
    468.20x = 701.49 × 331.01
  4. Step 4: Simplify right side
    468.20x = 232,201.96
  5. Step 5: Solve for x
    x = 232,201.96/468.20
  6. Step 6: Final answer
    x = 495.95

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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.