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Finding the Fourth Proportional to 441.98, 662.95 and 211.03

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Solution

The fourth proportional to 441.98, 662.95 and 211.03 is: 316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.98 : 662.95 = 211.03 : x
  2. Step 2: Convert to fraction form
    441.98/662.95 = 211.03/x
  3. Step 3: Cross multiply
    441.98x = 662.95 × 211.03
  4. Step 4: Simplify right side
    441.98x = 139,897.97
  5. Step 5: Solve for x
    x = 139,897.97/441.98
  6. Step 6: Final answer
    x = 316.53

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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.