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Finding the Fourth Proportional to 266,190.80, 399,286.20 and 226,101.20

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Solution

The fourth proportional to 266,190.80, 399,286.20 and 226,101.20 is: 339,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,190.80 : 399,286.20 = 226,101.20 : x
  2. Step 2: Convert to fraction form
    266,190.80/399,286.20 = 226,101.20/x
  3. Step 3: Cross multiply
    266,190.80x = 399,286.20 × 226,101.20
  4. Step 4: Simplify right side
    266,190.80x = 90,279,088,963.44
  5. Step 5: Solve for x
    x = 90,279,088,963.44/266,190.80
  6. Step 6: Final answer
    x = 339,151.80

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1.5x scale

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.