Home / 290,540.24-435,560.75-100,975.97

Finding the Fourth Proportional to 290,540.24, 435,560.75 and 100,975.97

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Solution

The fourth proportional to 290,540.24, 435,560.75 and 100,975.97 is: 151,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,540.24 : 435,560.75 = 100,975.97 : x
  2. Step 2: Convert to fraction form
    290,540.24/435,560.75 = 100,975.97/x
  3. Step 3: Cross multiply
    290,540.24x = 435,560.75 × 100,975.97
  4. Step 4: Simplify right side
    290,540.24x = 43,981,170,566.52
  5. Step 5: Solve for x
    x = 43,981,170,566.52/290,540.24
  6. Step 6: Final answer
    x = 151,377.21

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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.