Home / 263,816.57-395,761.73-86,288.19

Finding the Fourth Proportional to 263,816.57, 395,761.73 and 86,288.19

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Solution

The fourth proportional to 263,816.57, 395,761.73 and 86,288.19 is: 129,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,816.57 : 395,761.73 = 86,288.19 : x
  2. Step 2: Convert to fraction form
    263,816.57/395,761.73 = 86,288.19/x
  3. Step 3: Cross multiply
    263,816.57x = 395,761.73 × 86,288.19
  4. Step 4: Simplify right side
    263,816.57x = 34,149,562,921.53
  5. Step 5: Solve for x
    x = 34,149,562,921.53/263,816.57
  6. Step 6: Final answer
    x = 129,444.35

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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.