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Finding the Fourth Proportional to 226,542.20, 339,726.90 and 68,718.20

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Solution

The fourth proportional to 226,542.20, 339,726.90 and 68,718.20 is: 103,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,542.20 : 339,726.90 = 68,718.20 : x
  2. Step 2: Convert to fraction form
    226,542.20/339,726.90 = 68,718.20/x
  3. Step 3: Cross multiply
    226,542.20x = 339,726.90 × 68,718.20
  4. Step 4: Simplify right side
    226,542.20x = 23,345,421,059.58
  5. Step 5: Solve for x
    x = 23,345,421,059.58/226,542.20
  6. Step 6: Final answer
    x = 103,051.09

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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.