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Finding the Fourth Proportional to 175,635.80, 263,453.70 and 80,865.80

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Solution

The fourth proportional to 175,635.80, 263,453.70 and 80,865.80 is: 121,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,635.80 : 263,453.70 = 80,865.80 : x
  2. Step 2: Convert to fraction form
    175,635.80/263,453.70 = 80,865.80/x
  3. Step 3: Cross multiply
    175,635.80x = 263,453.70 × 80,865.80
  4. Step 4: Simplify right side
    175,635.80x = 21,304,394,213.46
  5. Step 5: Solve for x
    x = 21,304,394,213.46/175,635.80
  6. Step 6: Final answer
    x = 121,298.70

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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.