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Finding the Fourth Proportional to 247,896.72, 371,778.66 and 107,622

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Solution

The fourth proportional to 247,896.72, 371,778.66 and 107,622 is: 161,404.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,896.72 : 371,778.66 = 107,622 : x
  2. Step 2: Convert to fraction form
    247,896.72/371,778.66 = 107,622/x
  3. Step 3: Cross multiply
    247,896.72x = 371,778.66 × 107,622
  4. Step 4: Simplify right side
    247,896.72x = 40,011,562,946.52
  5. Step 5: Solve for x
    x = 40,011,562,946.52/247,896.72
  6. Step 6: Final answer
    x = 161,404.16

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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.