Home / 325,629.20-488,530.20-115,245.20

Finding the Fourth Proportional to 325,629.20, 488,530.20 and 115,245.20

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Solution

The fourth proportional to 325,629.20, 488,530.20 and 115,245.20 is: 172,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,629.20 : 488,530.20 = 115,245.20 : x
  2. Step 2: Convert to fraction form
    325,629.20/488,530.20 = 115,245.20/x
  3. Step 3: Cross multiply
    325,629.20x = 488,530.20 × 115,245.20
  4. Step 4: Simplify right side
    325,629.20x = 56,300,760,605.04
  5. Step 5: Solve for x
    x = 56,300,760,605.04/325,629.20
  6. Step 6: Final answer
    x = 172,898.38

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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.