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Finding the Fourth Proportional to 226,512.40, 339,768.60 and 68,748.70

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Solution

The fourth proportional to 226,512.40, 339,768.60 and 68,748.70 is: 103,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,512.40 : 339,768.60 = 68,748.70 : x
  2. Step 2: Convert to fraction form
    226,512.40/339,768.60 = 68,748.70/x
  3. Step 3: Cross multiply
    226,512.40x = 339,768.60 × 68,748.70
  4. Step 4: Simplify right side
    226,512.40x = 23,358,649,550.82
  5. Step 5: Solve for x
    x = 23,358,649,550.82/226,512.40
  6. Step 6: Final answer
    x = 103,123.05

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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.