Home / 231,909.20-347,604.60-98,766.80

Finding the Fourth Proportional to 231,909.20, 347,604.60 and 98,766.80

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Solution

The fourth proportional to 231,909.20, 347,604.60 and 98,766.80 is: 148,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,909.20 : 347,604.60 = 98,766.80 : x
  2. Step 2: Convert to fraction form
    231,909.20/347,604.60 = 98,766.80/x
  3. Step 3: Cross multiply
    231,909.20x = 347,604.60 × 98,766.80
  4. Step 4: Simplify right side
    231,909.20x = 34,331,794,007.28
  5. Step 5: Solve for x
    x = 34,331,794,007.28/231,909.20
  6. Step 6: Final answer
    x = 148,039.81

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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.