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Finding the Fourth Proportional to 300,834.78, 451,135.53 and 160,516.86

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Solution

The fourth proportional to 300,834.78, 451,135.53 and 160,516.86 is: 240,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,834.78 : 451,135.53 = 160,516.86 : x
  2. Step 2: Convert to fraction form
    300,834.78/451,135.53 = 160,516.86/x
  3. Step 3: Cross multiply
    300,834.78x = 451,135.53 × 160,516.86
  4. Step 4: Simplify right side
    300,834.78x = 72,414,858,710.04
  5. Step 5: Solve for x
    x = 72,414,858,710.04/300,834.78
  6. Step 6: Final answer
    x = 240,713.05

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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.