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Finding the Fourth Proportional to 275,470.60, 413,205.90 and 263,806.60

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Solution

The fourth proportional to 275,470.60, 413,205.90 and 263,806.60 is: 395,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,470.60 : 413,205.90 = 263,806.60 : x
  2. Step 2: Convert to fraction form
    275,470.60/413,205.90 = 263,806.60/x
  3. Step 3: Cross multiply
    275,470.60x = 413,205.90 × 263,806.60
  4. Step 4: Simplify right side
    275,470.60x = 109,006,443,578.94
  5. Step 5: Solve for x
    x = 109,006,443,578.94/275,470.60
  6. Step 6: Final answer
    x = 395,709.90

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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.