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Finding the Fourth Proportional to 250,375.91, 375,579.13 and 81,914.03

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Solution

The fourth proportional to 250,375.91, 375,579.13 and 81,914.03 is: 122,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,375.91 : 375,579.13 = 81,914.03 : x
  2. Step 2: Convert to fraction form
    250,375.91/375,579.13 = 81,914.03/x
  3. Step 3: Cross multiply
    250,375.91x = 375,579.13 × 81,914.03
  4. Step 4: Simplify right side
    250,375.91x = 30,765,201,714.16
  5. Step 5: Solve for x
    x = 30,765,201,714.16/250,375.91
  6. Step 6: Final answer
    x = 122,876.05

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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.