Home / 329,629.20-494,443.80-140,040.60

Finding the Fourth Proportional to 329,629.20, 494,443.80 and 140,040.60

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Solution

The fourth proportional to 329,629.20, 494,443.80 and 140,040.60 is: 210,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,629.20 : 494,443.80 = 140,040.60 : x
  2. Step 2: Convert to fraction form
    329,629.20/494,443.80 = 140,040.60/x
  3. Step 3: Cross multiply
    329,629.20x = 494,443.80 × 140,040.60
  4. Step 4: Simplify right side
    329,629.20x = 69,242,206,418.28
  5. Step 5: Solve for x
    x = 69,242,206,418.28/329,629.20
  6. Step 6: Final answer
    x = 210,060.90

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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.