Home / 205,127.20-307,690.80-171,949.60

Finding the Fourth Proportional to 205,127.20, 307,690.80 and 171,949.60

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Solution

The fourth proportional to 205,127.20, 307,690.80 and 171,949.60 is: 257,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,127.20 : 307,690.80 = 171,949.60 : x
  2. Step 2: Convert to fraction form
    205,127.20/307,690.80 = 171,949.60/x
  3. Step 3: Cross multiply
    205,127.20x = 307,690.80 × 171,949.60
  4. Step 4: Simplify right side
    205,127.20x = 52,907,309,983.68
  5. Step 5: Solve for x
    x = 52,907,309,983.68/205,127.20
  6. Step 6: Final answer
    x = 257,924.40

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1.5x scale

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.