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Finding the Fourth Proportional to 275,824.80, 413,834.40 and 266,104.80

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Solution

The fourth proportional to 275,824.80, 413,834.40 and 266,104.80 is: 399,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,824.80 : 413,834.40 = 266,104.80 : x
  2. Step 2: Convert to fraction form
    275,824.80/413,834.40 = 266,104.80/x
  3. Step 3: Cross multiply
    275,824.80x = 413,834.40 × 266,104.80
  4. Step 4: Simplify right side
    275,824.80x = 110,123,320,245.12
  5. Step 5: Solve for x
    x = 110,123,320,245.12/275,824.80
  6. Step 6: Final answer
    x = 399,250.97

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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.