Home / 205,917.31-308,844.24-56,169.78

Finding the Fourth Proportional to 205,917.31, 308,844.24 and 56,169.78

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Solution

The fourth proportional to 205,917.31, 308,844.24 and 56,169.78 is: 84,246.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,917.31 : 308,844.24 = 56,169.78 : x
  2. Step 2: Convert to fraction form
    205,917.31/308,844.24 = 56,169.78/x
  3. Step 3: Cross multiply
    205,917.31x = 308,844.24 × 56,169.78
  4. Step 4: Simplify right side
    205,917.31x = 17,347,713,015.07
  5. Step 5: Solve for x
    x = 17,347,713,015.07/205,917.31
  6. Step 6: Final answer
    x = 84,246.02

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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.