Home / 285,736.38-428,517.07-197,556.54

Finding the Fourth Proportional to 285,736.38, 428,517.07 and 197,556.54

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Solution

The fourth proportional to 285,736.38, 428,517.07 and 197,556.54 is: 296,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,736.38 : 428,517.07 = 197,556.54 : x
  2. Step 2: Convert to fraction form
    285,736.38/428,517.07 = 197,556.54/x
  3. Step 3: Cross multiply
    285,736.38x = 428,517.07 × 197,556.54
  4. Step 4: Simplify right side
    285,736.38x = 84,656,349,680.14
  5. Step 5: Solve for x
    x = 84,656,349,680.14/285,736.38
  6. Step 6: Final answer
    x = 296,274.31

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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.