Home / 505,720.76-758,578.37-206,200.17

Finding the Fourth Proportional to 505,720.76, 758,578.37 and 206,200.17

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Solution

The fourth proportional to 505,720.76, 758,578.37 and 206,200.17 is: 309,299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,720.76 : 758,578.37 = 206,200.17 : x
  2. Step 2: Convert to fraction form
    505,720.76/758,578.37 = 206,200.17/x
  3. Step 3: Cross multiply
    505,720.76x = 758,578.37 × 206,200.17
  4. Step 4: Simplify right side
    505,720.76x = 156,418,987,821.32
  5. Step 5: Solve for x
    x = 156,418,987,821.32/505,720.76
  6. Step 6: Final answer
    x = 309,299.13

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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.