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Finding the Fourth Proportional to 227,109.78, 340,674.08 and 84,940.80

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Solution

The fourth proportional to 227,109.78, 340,674.08 and 84,940.80 is: 127,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,109.78 : 340,674.08 = 84,940.80 : x
  2. Step 2: Convert to fraction form
    227,109.78/340,674.08 = 84,940.80/x
  3. Step 3: Cross multiply
    227,109.78x = 340,674.08 × 84,940.80
  4. Step 4: Simplify right side
    227,109.78x = 28,937,128,469.76
  5. Step 5: Solve for x
    x = 28,937,128,469.76/227,109.78
  6. Step 6: Final answer
    x = 127,414.72

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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.