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Finding the Fourth Proportional to 375,719.22, 518,513.74 and 222,847.92

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Solution

The fourth proportional to 375,719.22, 518,513.74 and 222,847.92 is: 307,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,719.22 : 518,513.74 = 222,847.92 : x
  2. Step 2: Convert to fraction form
    375,719.22/518,513.74 = 222,847.92/x
  3. Step 3: Cross multiply
    375,719.22x = 518,513.74 × 222,847.92
  4. Step 4: Simplify right side
    375,719.22x = 115,549,707,893.30
  5. Step 5: Solve for x
    x = 115,549,707,893.30/375,719.22
  6. Step 6: Final answer
    x = 307,542.71

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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.