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Finding the Fourth Proportional to 226,998.80, 340,498.20 and 86,739.20

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Solution

The fourth proportional to 226,998.80, 340,498.20 and 86,739.20 is: 130,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,998.80 : 340,498.20 = 86,739.20 : x
  2. Step 2: Convert to fraction form
    226,998.80/340,498.20 = 86,739.20/x
  3. Step 3: Cross multiply
    226,998.80x = 340,498.20 × 86,739.20
  4. Step 4: Simplify right side
    226,998.80x = 29,534,541,469.44
  5. Step 5: Solve for x
    x = 29,534,541,469.44/226,998.80
  6. Step 6: Final answer
    x = 130,108.80

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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.