Home / 263,820.50-395,735.09-74,285.43

Finding the Fourth Proportional to 263,820.50, 395,735.09 and 74,285.43

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Solution

The fourth proportional to 263,820.50, 395,735.09 and 74,285.43 is: 111,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,820.50 : 395,735.09 = 74,285.43 : x
  2. Step 2: Convert to fraction form
    263,820.50/395,735.09 = 74,285.43/x
  3. Step 3: Cross multiply
    263,820.50x = 395,735.09 × 74,285.43
  4. Step 4: Simplify right side
    263,820.50x = 29,397,350,955.31
  5. Step 5: Solve for x
    x = 29,397,350,955.31/263,820.50
  6. Step 6: Final answer
    x = 111,429.37

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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.