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Finding the Fourth Proportional to 375,410.89, 518,067.66 and 203,329.23

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Solution

The fourth proportional to 375,410.89, 518,067.66 and 203,329.23 is: 280,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,410.89 : 518,067.66 = 203,329.23 : x
  2. Step 2: Convert to fraction form
    375,410.89/518,067.66 = 203,329.23/x
  3. Step 3: Cross multiply
    375,410.89x = 518,067.66 × 203,329.23
  4. Step 4: Simplify right side
    375,410.89x = 105,338,297,215.43
  5. Step 5: Solve for x
    x = 105,338,297,215.43/375,410.89
  6. Step 6: Final answer
    x = 280,594.68

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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.