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Finding the Fourth Proportional to 266,226, 399,339 and 69,234

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Solution

The fourth proportional to 266,226, 399,339 and 69,234 is: 103,851

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,226 : 399,339 = 69,234 : x
  2. Step 2: Convert to fraction form
    266,226/399,339 = 69,234/x
  3. Step 3: Cross multiply
    266,226x = 399,339 × 69,234
  4. Step 4: Simplify right side
    266,226x = 27,647,836,326
  5. Step 5: Solve for x
    x = 27,647,836,326/266,226
  6. Step 6: Final answer
    x = 103,851

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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.