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Finding the Fourth Proportional to 269,998.40, 404,997.60 and 255,564.20

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Solution

The fourth proportional to 269,998.40, 404,997.60 and 255,564.20 is: 383,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,998.40 : 404,997.60 = 255,564.20 : x
  2. Step 2: Convert to fraction form
    269,998.40/404,997.60 = 255,564.20/x
  3. Step 3: Cross multiply
    269,998.40x = 404,997.60 × 255,564.20
  4. Step 4: Simplify right side
    269,998.40x = 103,502,887,645.92
  5. Step 5: Solve for x
    x = 103,502,887,645.92/269,998.40
  6. Step 6: Final answer
    x = 383,346.30

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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.