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Finding the Fourth Proportional to 253,286.80, 379,930.13 and 95,478.35

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Solution

The fourth proportional to 253,286.80, 379,930.13 and 95,478.35 is: 143,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,286.80 : 379,930.13 = 95,478.35 : x
  2. Step 2: Convert to fraction form
    253,286.80/379,930.13 = 95,478.35/x
  3. Step 3: Cross multiply
    253,286.80x = 379,930.13 × 95,478.35
  4. Step 4: Simplify right side
    253,286.80x = 36,275,100,975.38
  5. Step 5: Solve for x
    x = 36,275,100,975.38/253,286.80
  6. Step 6: Final answer
    x = 143,217.49

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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.