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Finding the Fourth Proportional to 322,144.20, 444,781.40 and 201,339.79

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Solution

The fourth proportional to 322,144.20, 444,781.40 and 201,339.79 is: 277,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,144.20 : 444,781.40 = 201,339.79 : x
  2. Step 2: Convert to fraction form
    322,144.20/444,781.40 = 201,339.79/x
  3. Step 3: Cross multiply
    322,144.20x = 444,781.40 × 201,339.79
  4. Step 4: Simplify right side
    322,144.20x = 89,552,194,175.26
  5. Step 5: Solve for x
    x = 89,552,194,175.26/322,144.20
  6. Step 6: Final answer
    x = 277,987.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.