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Finding the Fourth Proportional to 361,325.78, 498,629.22 and 200,190.86

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Solution

The fourth proportional to 361,325.78, 498,629.22 and 200,190.86 is: 276,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,325.78 : 498,629.22 = 200,190.86 : x
  2. Step 2: Convert to fraction form
    361,325.78/498,629.22 = 200,190.86/x
  3. Step 3: Cross multiply
    361,325.78x = 498,629.22 × 200,190.86
  4. Step 4: Simplify right side
    361,325.78x = 99,821,012,372.93
  5. Step 5: Solve for x
    x = 99,821,012,372.93/361,325.78
  6. Step 6: Final answer
    x = 276,263.19

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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.