Home / 239,947.25-331,127.21-139,351.73

Finding the Fourth Proportional to 239,947.25, 331,127.21 and 139,351.73

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Solution

The fourth proportional to 239,947.25, 331,127.21 and 139,351.73 is: 192,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,947.25 : 331,127.21 = 139,351.73 : x
  2. Step 2: Convert to fraction form
    239,947.25/331,127.21 = 139,351.73/x
  3. Step 3: Cross multiply
    239,947.25x = 331,127.21 × 139,351.73
  4. Step 4: Simplify right side
    239,947.25x = 46,143,148,866.81
  5. Step 5: Solve for x
    x = 46,143,148,866.81/239,947.25
  6. Step 6: Final answer
    x = 192,305.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.