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Finding the Fourth Proportional to 227,279.78, 340,919.65 and 215,914.97

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Solution

The fourth proportional to 227,279.78, 340,919.65 and 215,914.97 is: 323,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,279.78 : 340,919.65 = 215,914.97 : x
  2. Step 2: Convert to fraction form
    227,279.78/340,919.65 = 215,914.97/x
  3. Step 3: Cross multiply
    227,279.78x = 340,919.65 × 215,914.97
  4. Step 4: Simplify right side
    227,279.78x = 73,609,656,165.52
  5. Step 5: Solve for x
    x = 73,609,656,165.52/227,279.78
  6. Step 6: Final answer
    x = 323,872.44

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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.