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Finding the Fourth Proportional to 269,997.40, 404,996.10 and 255,563.20

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Solution

The fourth proportional to 269,997.40, 404,996.10 and 255,563.20 is: 383,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,997.40 : 404,996.10 = 255,563.20 : x
  2. Step 2: Convert to fraction form
    269,997.40/404,996.10 = 255,563.20/x
  3. Step 3: Cross multiply
    269,997.40x = 404,996.10 × 255,563.20
  4. Step 4: Simplify right side
    269,997.40x = 103,502,099,303.52
  5. Step 5: Solve for x
    x = 103,502,099,303.52/269,997.40
  6. Step 6: Final answer
    x = 383,344.80

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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.