Home / 206,380.75-309,550.39-56,636.10

Finding the Fourth Proportional to 206,380.75, 309,550.39 and 56,636.10

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Solution

The fourth proportional to 206,380.75, 309,550.39 and 56,636.10 is: 84,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,380.75 : 309,550.39 = 56,636.10 : x
  2. Step 2: Convert to fraction form
    206,380.75/309,550.39 = 56,636.10/x
  3. Step 3: Cross multiply
    206,380.75x = 309,550.39 × 56,636.10
  4. Step 4: Simplify right side
    206,380.75x = 17,531,726,843.08
  5. Step 5: Solve for x
    x = 17,531,726,843.08/206,380.75
  6. Step 6: Final answer
    x = 84,948.46

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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.