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Finding the Fourth Proportional to 300,659.72, 451,010.62 and 120,745.14

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Solution

The fourth proportional to 300,659.72, 451,010.62 and 120,745.14 is: 181,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,659.72 : 451,010.62 = 120,745.14 : x
  2. Step 2: Convert to fraction form
    300,659.72/451,010.62 = 120,745.14/x
  3. Step 3: Cross multiply
    300,659.72x = 451,010.62 × 120,745.14
  4. Step 4: Simplify right side
    300,659.72x = 54,457,340,453.39
  5. Step 5: Solve for x
    x = 54,457,340,453.39/300,659.72
  6. Step 6: Final answer
    x = 181,126.16

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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.