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Finding the Fourth Proportional to 381,108.56, 571,662.86 and 100,628.24

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Solution

The fourth proportional to 381,108.56, 571,662.86 and 100,628.24 is: 150,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,108.56 : 571,662.86 = 100,628.24 : x
  2. Step 2: Convert to fraction form
    381,108.56/571,662.86 = 100,628.24/x
  3. Step 3: Cross multiply
    381,108.56x = 571,662.86 × 100,628.24
  4. Step 4: Simplify right side
    381,108.56x = 57,525,424,113.71
  5. Step 5: Solve for x
    x = 57,525,424,113.71/381,108.56
  6. Step 6: Final answer
    x = 150,942.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.