Home / 263,090.80-394,636.20-228,098.80

Finding the Fourth Proportional to 263,090.80, 394,636.20 and 228,098.80

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Solution

The fourth proportional to 263,090.80, 394,636.20 and 228,098.80 is: 342,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,090.80 : 394,636.20 = 228,098.80 : x
  2. Step 2: Convert to fraction form
    263,090.80/394,636.20 = 228,098.80/x
  3. Step 3: Cross multiply
    263,090.80x = 394,636.20 × 228,098.80
  4. Step 4: Simplify right side
    263,090.80x = 90,016,043,656.56
  5. Step 5: Solve for x
    x = 90,016,043,656.56/263,090.80
  6. Step 6: Final answer
    x = 342,148.20

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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.