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Finding the Fourth Proportional to 226,180.80, 339,439.68 and 86,212.80

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Solution

The fourth proportional to 226,180.80, 339,439.68 and 86,212.80 is: 129,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,180.80 : 339,439.68 = 86,212.80 : x
  2. Step 2: Convert to fraction form
    226,180.80/339,439.68 = 86,212.80/x
  3. Step 3: Cross multiply
    226,180.80x = 339,439.68 × 86,212.80
  4. Step 4: Simplify right side
    226,180.80x = 29,264,045,243.90
  5. Step 5: Solve for x
    x = 29,264,045,243.90/226,180.80
  6. Step 6: Final answer
    x = 129,383.42

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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.