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Finding the Fourth Proportional to 499.22, 748.82 and 133.99

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Solution

The fourth proportional to 499.22, 748.82 and 133.99 is: 200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.22 : 748.82 = 133.99 : x
  2. Step 2: Convert to fraction form
    499.22/748.82 = 133.99/x
  3. Step 3: Cross multiply
    499.22x = 748.82 × 133.99
  4. Step 4: Simplify right side
    499.22x = 100,334.26
  5. Step 5: Solve for x
    x = 100,334.26/499.22
  6. Step 6: Final answer
    x = 200.98

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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.