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Finding the Fourth Proportional to 275,205.52, 379,798.96 and 207,100

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Solution

The fourth proportional to 275,205.52, 379,798.96 and 207,100 is: 285,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,205.52 : 379,798.96 = 207,100 : x
  2. Step 2: Convert to fraction form
    275,205.52/379,798.96 = 207,100/x
  3. Step 3: Cross multiply
    275,205.52x = 379,798.96 × 207,100
  4. Step 4: Simplify right side
    275,205.52x = 78,656,364,616
  5. Step 5: Solve for x
    x = 78,656,364,616/275,205.52
  6. Step 6: Final answer
    x = 285,809.55

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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.