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Finding the Fourth Proportional to 325,227.80, 487,826.66 and 85,335.77

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Solution

The fourth proportional to 325,227.80, 487,826.66 and 85,335.77 is: 127,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,227.80 : 487,826.66 = 85,335.77 : x
  2. Step 2: Convert to fraction form
    325,227.80/487,826.66 = 85,335.77/x
  3. Step 3: Cross multiply
    325,227.80x = 487,826.66 × 85,335.77
  4. Step 4: Simplify right side
    325,227.80x = 41,629,065,090.53
  5. Step 5: Solve for x
    x = 41,629,065,090.53/325,227.80
  6. Step 6: Final answer
    x = 127,999.71

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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.