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Finding the Fourth Proportional to 381,518.56, 526,550.42 and 228,563.32

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Solution

The fourth proportional to 381,518.56, 526,550.42 and 228,563.32 is: 315,450.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,518.56 : 526,550.42 = 228,563.32 : x
  2. Step 2: Convert to fraction form
    381,518.56/526,550.42 = 228,563.32/x
  3. Step 3: Cross multiply
    381,518.56x = 526,550.42 × 228,563.32
  4. Step 4: Simplify right side
    381,518.56x = 120,350,112,142.59
  5. Step 5: Solve for x
    x = 120,350,112,142.59/381,518.56
  6. Step 6: Final answer
    x = 315,450.22

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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.