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Finding the Fourth Proportional to 303,944.73, 455,849.90 and 87,756.49

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Solution

The fourth proportional to 303,944.73, 455,849.90 and 87,756.49 is: 131,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,944.73 : 455,849.90 = 87,756.49 : x
  2. Step 2: Convert to fraction form
    303,944.73/455,849.90 = 87,756.49/x
  3. Step 3: Cross multiply
    303,944.73x = 455,849.90 × 87,756.49
  4. Step 4: Simplify right side
    303,944.73x = 40,003,787,190.85
  5. Step 5: Solve for x
    x = 40,003,787,190.85/303,944.73
  6. Step 6: Final answer
    x = 131,615.33

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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.