Home / 850.14-1,274.58-330.12

Finding the Fourth Proportional to 850.14, 1,274.58 and 330.12

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Solution

The fourth proportional to 850.14, 1,274.58 and 330.12 is: 494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.14 : 1,274.58 = 330.12 : x
  2. Step 2: Convert to fraction form
    850.14/1,274.58 = 330.12/x
  3. Step 3: Cross multiply
    850.14x = 1,274.58 × 330.12
  4. Step 4: Simplify right side
    850.14x = 420,764.35
  5. Step 5: Solve for x
    x = 420,764.35/850.14
  6. Step 6: Final answer
    x = 494.94

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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.