Home / 205,179.20-307,068.60-171,936.80

Finding the Fourth Proportional to 205,179.20, 307,068.60 and 171,936.80

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Solution

The fourth proportional to 205,179.20, 307,068.60 and 171,936.80 is: 257,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,179.20 : 307,068.60 = 171,936.80 : x
  2. Step 2: Convert to fraction form
    205,179.20/307,068.60 = 171,936.80/x
  3. Step 3: Cross multiply
    205,179.20x = 307,068.60 × 171,936.80
  4. Step 4: Simplify right side
    205,179.20x = 52,796,392,464.48
  5. Step 5: Solve for x
    x = 52,796,392,464.48/205,179.20
  6. Step 6: Final answer
    x = 257,318.44

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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.