Home / 263,733.12-395,664.48-76,746.24

Finding the Fourth Proportional to 263,733.12, 395,664.48 and 76,746.24

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Solution

The fourth proportional to 263,733.12, 395,664.48 and 76,746.24 is: 115,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,733.12 : 395,664.48 = 76,746.24 : x
  2. Step 2: Convert to fraction form
    263,733.12/395,664.48 = 76,746.24/x
  3. Step 3: Cross multiply
    263,733.12x = 395,664.48 × 76,746.24
  4. Step 4: Simplify right side
    263,733.12x = 30,365,761,141.56
  5. Step 5: Solve for x
    x = 30,365,761,141.56/263,733.12
  6. Step 6: Final answer
    x = 115,138.22

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1.5x scale

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.