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Finding the Fourth Proportional to 329,049.20, 493,804.20 and 142,194.80

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Solution

The fourth proportional to 329,049.20, 493,804.20 and 142,194.80 is: 213,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,049.20 : 493,804.20 = 142,194.80 : x
  2. Step 2: Convert to fraction form
    329,049.20/493,804.20 = 142,194.80/x
  3. Step 3: Cross multiply
    329,049.20x = 493,804.20 × 142,194.80
  4. Step 4: Simplify right side
    329,049.20x = 70,216,389,458.16
  5. Step 5: Solve for x
    x = 70,216,389,458.16/329,049.20
  6. Step 6: Final answer
    x = 213,391.76

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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.