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Finding the Fourth Proportional to 226,893.88, 340,314.90 and 86,649.40

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Solution

The fourth proportional to 226,893.88, 340,314.90 and 86,649.40 is: 129,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,893.88 : 340,314.90 = 86,649.40 : x
  2. Step 2: Convert to fraction form
    226,893.88/340,314.90 = 86,649.40/x
  3. Step 3: Cross multiply
    226,893.88x = 340,314.90 × 86,649.40
  4. Step 4: Simplify right side
    226,893.88x = 29,488,081,896.06
  5. Step 5: Solve for x
    x = 29,488,081,896.06/226,893.88
  6. Step 6: Final answer
    x = 129,964.20

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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.