Home / 298,514.16-447,770.23-121,020.75

Finding the Fourth Proportional to 298,514.16, 447,770.23 and 121,020.75

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Solution

The fourth proportional to 298,514.16, 447,770.23 and 121,020.75 is: 181,530.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,514.16 : 447,770.23 = 121,020.75 : x
  2. Step 2: Convert to fraction form
    298,514.16/447,770.23 = 121,020.75/x
  3. Step 3: Cross multiply
    298,514.16x = 447,770.23 × 121,020.75
  4. Step 4: Simplify right side
    298,514.16x = 54,189,488,759.72
  5. Step 5: Solve for x
    x = 54,189,488,759.72/298,514.16
  6. Step 6: Final answer
    x = 181,530.71

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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.