Home / 205,252.36-307,976.02-142,169.56

Finding the Fourth Proportional to 205,252.36, 307,976.02 and 142,169.56

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Solution

The fourth proportional to 205,252.36, 307,976.02 and 142,169.56 is: 213,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,252.36 : 307,976.02 = 142,169.56 : x
  2. Step 2: Convert to fraction form
    205,252.36/307,976.02 = 142,169.56/x
  3. Step 3: Cross multiply
    205,252.36x = 307,976.02 × 142,169.56
  4. Step 4: Simplify right side
    205,252.36x = 43,784,814,128.59
  5. Step 5: Solve for x
    x = 43,784,814,128.59/205,252.36
  6. Step 6: Final answer
    x = 213,321.86

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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.