Home / 300,789.24-451,240.86-120,888.66

Finding the Fourth Proportional to 300,789.24, 451,240.86 and 120,888.66

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Solution

The fourth proportional to 300,789.24, 451,240.86 and 120,888.66 is: 181,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,789.24 : 451,240.86 = 120,888.66 : x
  2. Step 2: Convert to fraction form
    300,789.24/451,240.86 = 120,888.66/x
  3. Step 3: Cross multiply
    300,789.24x = 451,240.86 × 120,888.66
  4. Step 4: Simplify right side
    300,789.24x = 54,549,902,902.65
  5. Step 5: Solve for x
    x = 54,549,902,902.65/300,789.24
  6. Step 6: Final answer
    x = 181,355.90

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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.