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Finding the Fourth Proportional to 333.28, 499.60 and 141.04

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Solution

The fourth proportional to 333.28, 499.60 and 141.04 is: 211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.28 : 499.60 = 141.04 : x
  2. Step 2: Convert to fraction form
    333.28/499.60 = 141.04/x
  3. Step 3: Cross multiply
    333.28x = 499.60 × 141.04
  4. Step 4: Simplify right side
    333.28x = 70,463.58
  5. Step 5: Solve for x
    x = 70,463.58/333.28
  6. Step 6: Final answer
    x = 211.42

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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.