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Finding the Fourth Proportional to 300,758.38, 451,102.45 and 120,836.52

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Solution

The fourth proportional to 300,758.38, 451,102.45 and 120,836.52 is: 181,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,758.38 : 451,102.45 = 120,836.52 : x
  2. Step 2: Convert to fraction form
    300,758.38/451,102.45 = 120,836.52/x
  3. Step 3: Cross multiply
    300,758.38x = 451,102.45 × 120,836.52
  4. Step 4: Simplify right side
    300,758.38x = 54,509,649,919.38
  5. Step 5: Solve for x
    x = 54,509,649,919.38/300,758.38
  6. Step 6: Final answer
    x = 181,240.67

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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.