Home / 205,226.20-307,139.10-171,983.80

Finding the Fourth Proportional to 205,226.20, 307,139.10 and 171,983.80

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Solution

The fourth proportional to 205,226.20, 307,139.10 and 171,983.80 is: 257,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,226.20 : 307,139.10 = 171,983.80 : x
  2. Step 2: Convert to fraction form
    205,226.20/307,139.10 = 171,983.80/x
  3. Step 3: Cross multiply
    205,226.20x = 307,139.10 × 171,983.80
  4. Step 4: Simplify right side
    205,226.20x = 52,822,949,546.58
  5. Step 5: Solve for x
    x = 52,822,949,546.58/205,226.20
  6. Step 6: Final answer
    x = 257,388.92

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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.