Home / 1,255.02-1,882.61-330.60

Finding the Fourth Proportional to 1,255.02, 1,882.61 and 330.60

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Solution

The fourth proportional to 1,255.02, 1,882.61 and 330.60 is: 495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.02 : 1,882.61 = 330.60 : x
  2. Step 2: Convert to fraction form
    1,255.02/1,882.61 = 330.60/x
  3. Step 3: Cross multiply
    1,255.02x = 1,882.61 × 330.60
  4. Step 4: Simplify right side
    1,255.02x = 622,390.87
  5. Step 5: Solve for x
    x = 622,390.87/1,255.02
  6. Step 6: Final answer
    x = 495.92

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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.