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Finding the Fourth Proportional to 485,625.47, 670,171.46 and 267,859.15

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Solution

The fourth proportional to 485,625.47, 670,171.46 and 267,859.15 is: 369,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,625.47 : 670,171.46 = 267,859.15 : x
  2. Step 2: Convert to fraction form
    485,625.47/670,171.46 = 267,859.15/x
  3. Step 3: Cross multiply
    485,625.47x = 670,171.46 × 267,859.15
  4. Step 4: Simplify right side
    485,625.47x = 179,511,554,615.14
  5. Step 5: Solve for x
    x = 179,511,554,615.14/485,625.47
  6. Step 6: Final answer
    x = 369,650.21

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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.