Home / 850.14-1,275.18-330.26

Finding the Fourth Proportional to 850.14, 1,275.18 and 330.26

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Solution

The fourth proportional to 850.14, 1,275.18 and 330.26 is: 495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.14 : 1,275.18 = 330.26 : x
  2. Step 2: Convert to fraction form
    850.14/1,275.18 = 330.26/x
  3. Step 3: Cross multiply
    850.14x = 1,275.18 × 330.26
  4. Step 4: Simplify right side
    850.14x = 421,140.95
  5. Step 5: Solve for x
    x = 421,140.95/850.14
  6. Step 6: Final answer
    x = 495.38

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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.