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Finding the Fourth Proportional to 245,533.50, 368,299.20 and 68,040

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Solution

The fourth proportional to 245,533.50, 368,299.20 and 68,040 is: 102,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,533.50 : 368,299.20 = 68,040 : x
  2. Step 2: Convert to fraction form
    245,533.50/368,299.20 = 68,040/x
  3. Step 3: Cross multiply
    245,533.50x = 368,299.20 × 68,040
  4. Step 4: Simplify right side
    245,533.50x = 25,059,077,568
  5. Step 5: Solve for x
    x = 25,059,077,568/245,533.50
  6. Step 6: Final answer
    x = 102,059.71

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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.