Home / 205,253.36-307,977.52-142,170.56

Finding the Fourth Proportional to 205,253.36, 307,977.52 and 142,170.56

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Solution

The fourth proportional to 205,253.36, 307,977.52 and 142,170.56 is: 213,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,253.36 : 307,977.52 = 142,170.56 : x
  2. Step 2: Convert to fraction form
    205,253.36/307,977.52 = 142,170.56/x
  3. Step 3: Cross multiply
    205,253.36x = 307,977.52 × 142,170.56
  4. Step 4: Simplify right side
    205,253.36x = 43,785,336,485.81
  5. Step 5: Solve for x
    x = 43,785,336,485.81/205,253.36
  6. Step 6: Final answer
    x = 213,323.36

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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.