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Finding the Fourth Proportional to 269,607.80, 404,411.70 and 266,108.60

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Solution

The fourth proportional to 269,607.80, 404,411.70 and 266,108.60 is: 399,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,607.80 : 404,411.70 = 266,108.60 : x
  2. Step 2: Convert to fraction form
    269,607.80/404,411.70 = 266,108.60/x
  3. Step 3: Cross multiply
    269,607.80x = 404,411.70 × 266,108.60
  4. Step 4: Simplify right side
    269,607.80x = 107,617,431,310.62
  5. Step 5: Solve for x
    x = 107,617,431,310.62/269,607.80
  6. Step 6: Final answer
    x = 399,162.90

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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.