Home / 300,923.89-451,314.19-121,009.75

Finding the Fourth Proportional to 300,923.89, 451,314.19 and 121,009.75

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Solution

The fourth proportional to 300,923.89, 451,314.19 and 121,009.75 is: 181,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,923.89 : 451,314.19 = 121,009.75 : x
  2. Step 2: Convert to fraction form
    300,923.89/451,314.19 = 121,009.75/x
  3. Step 3: Cross multiply
    300,923.89x = 451,314.19 × 121,009.75
  4. Step 4: Simplify right side
    300,923.89x = 54,613,417,303.35
  5. Step 5: Solve for x
    x = 54,613,417,303.35/300,923.89
  6. Step 6: Final answer
    x = 181,485.81

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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.