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Finding the Fourth Proportional to 485,843.52, 670,465.22 and 270,997.50

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Solution

The fourth proportional to 485,843.52, 670,465.22 and 270,997.50 is: 373,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,843.52 : 670,465.22 = 270,997.50 : x
  2. Step 2: Convert to fraction form
    485,843.52/670,465.22 = 270,997.50/x
  3. Step 3: Cross multiply
    485,843.52x = 670,465.22 × 270,997.50
  4. Step 4: Simplify right side
    485,843.52x = 181,694,398,456.95
  5. Step 5: Solve for x
    x = 181,694,398,456.95/485,843.52
  6. Step 6: Final answer
    x = 373,977.20

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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.