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Finding the Fourth Proportional to 300,744.59, 451,186.56 and 87,517.53

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Solution

The fourth proportional to 300,744.59, 451,186.56 and 87,517.53 is: 131,296.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,744.59 : 451,186.56 = 87,517.53 : x
  2. Step 2: Convert to fraction form
    300,744.59/451,186.56 = 87,517.53/x
  3. Step 3: Cross multiply
    300,744.59x = 451,186.56 × 87,517.53
  4. Step 4: Simplify right side
    300,744.59x = 39,486,733,300.40
  5. Step 5: Solve for x
    x = 39,486,733,300.40/300,744.59
  6. Step 6: Final answer
    x = 131,296.57

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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.