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Finding the Fourth Proportional to 300,939.48, 451,267.74 and 111,268.80

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Solution

The fourth proportional to 300,939.48, 451,267.74 and 111,268.80 is: 166,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,939.48 : 451,267.74 = 111,268.80 : x
  2. Step 2: Convert to fraction form
    300,939.48/451,267.74 = 111,268.80/x
  3. Step 3: Cross multiply
    300,939.48x = 451,267.74 × 111,268.80
  4. Step 4: Simplify right side
    300,939.48x = 50,212,019,908.51
  5. Step 5: Solve for x
    x = 50,212,019,908.51/300,939.48
  6. Step 6: Final answer
    x = 166,850.89

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1.5x scale

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.