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Finding the Fourth Proportional to 375,682.56, 518,025.60 and 239,500.80

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Solution

The fourth proportional to 375,682.56, 518,025.60 and 239,500.80 is: 330,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,682.56 : 518,025.60 = 239,500.80 : x
  2. Step 2: Convert to fraction form
    375,682.56/518,025.60 = 239,500.80/x
  3. Step 3: Cross multiply
    375,682.56x = 518,025.60 × 239,500.80
  4. Step 4: Simplify right side
    375,682.56x = 124,067,545,620.48
  5. Step 5: Solve for x
    x = 124,067,545,620.48/375,682.56
  6. Step 6: Final answer
    x = 330,245.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.