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Finding the Fourth Proportional to 275,344.40, 379,968.36 and 162,174.80

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Solution

The fourth proportional to 275,344.40, 379,968.36 and 162,174.80 is: 223,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,344.40 : 379,968.36 = 162,174.80 : x
  2. Step 2: Convert to fraction form
    275,344.40/379,968.36 = 162,174.80/x
  3. Step 3: Cross multiply
    275,344.40x = 379,968.36 × 162,174.80
  4. Step 4: Simplify right side
    275,344.40x = 61,621,292,789.33
  5. Step 5: Solve for x
    x = 61,621,292,789.33/275,344.40
  6. Step 6: Final answer
    x = 223,797.15

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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.