Home / 225,922.37-338,682.20-85,779.41

Finding the Fourth Proportional to 225,922.37, 338,682.20 and 85,779.41

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Solution

The fourth proportional to 225,922.37, 338,682.20 and 85,779.41 is: 128,592.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,922.37 : 338,682.20 = 85,779.41 : x
  2. Step 2: Convert to fraction form
    225,922.37/338,682.20 = 85,779.41/x
  3. Step 3: Cross multiply
    225,922.37x = 338,682.20 × 85,779.41
  4. Step 4: Simplify right side
    225,922.37x = 29,051,957,171.19
  5. Step 5: Solve for x
    x = 29,051,957,171.19/225,922.37
  6. Step 6: Final answer
    x = 128,592.66

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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.