Home / 263,445.08-395,208.77-85,910.79

Finding the Fourth Proportional to 263,445.08, 395,208.77 and 85,910.79

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Solution

The fourth proportional to 263,445.08, 395,208.77 and 85,910.79 is: 128,879.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,445.08 : 395,208.77 = 85,910.79 : x
  2. Step 2: Convert to fraction form
    263,445.08/395,208.77 = 85,910.79/x
  3. Step 3: Cross multiply
    263,445.08x = 395,208.77 × 85,910.79
  4. Step 4: Simplify right side
    263,445.08x = 33,952,698,698.11
  5. Step 5: Solve for x
    x = 33,952,698,698.11/263,445.08
  6. Step 6: Final answer
    x = 128,879.61

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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.