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Finding the Fourth Proportional to 269,784.40, 404,676.60 and 265,847.80

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Solution

The fourth proportional to 269,784.40, 404,676.60 and 265,847.80 is: 398,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,784.40 : 404,676.60 = 265,847.80 : x
  2. Step 2: Convert to fraction form
    269,784.40/404,676.60 = 265,847.80/x
  3. Step 3: Cross multiply
    269,784.40x = 404,676.60 × 265,847.80
  4. Step 4: Simplify right side
    269,784.40x = 107,582,383,821.48
  5. Step 5: Solve for x
    x = 107,582,383,821.48/269,784.40
  6. Step 6: Final answer
    x = 398,771.70

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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.