Home / 234,868.80-324,203-139,375.50

Finding the Fourth Proportional to 234,868.80, 324,203 and 139,375.50

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Solution

The fourth proportional to 234,868.80, 324,203 and 139,375.50 is: 192,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,868.80 : 324,203 = 139,375.50 : x
  2. Step 2: Convert to fraction form
    234,868.80/324,203 = 139,375.50/x
  3. Step 3: Cross multiply
    234,868.80x = 324,203 × 139,375.50
  4. Step 4: Simplify right side
    234,868.80x = 45,185,955,226.50
  5. Step 5: Solve for x
    x = 45,185,955,226.50/234,868.80
  6. Step 6: Final answer
    x = 192,388.07

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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.