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Finding the Fourth Proportional to 308,485.72, 462,440.22 and 108,694.36

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Solution

The fourth proportional to 308,485.72, 462,440.22 and 108,694.36 is: 162,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,485.72 : 462,440.22 = 108,694.36 : x
  2. Step 2: Convert to fraction form
    308,485.72/462,440.22 = 108,694.36/x
  3. Step 3: Cross multiply
    308,485.72x = 462,440.22 × 108,694.36
  4. Step 4: Simplify right side
    308,485.72x = 50,264,643,751.16
  5. Step 5: Solve for x
    x = 50,264,643,751.16/308,485.72
  6. Step 6: Final answer
    x = 162,939.94

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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.