Home / 220,418.35-303,895.76-142,756.81

Finding the Fourth Proportional to 220,418.35, 303,895.76 and 142,756.81

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Solution

The fourth proportional to 220,418.35, 303,895.76 and 142,756.81 is: 196,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,418.35 : 303,895.76 = 142,756.81 : x
  2. Step 2: Convert to fraction form
    220,418.35/303,895.76 = 142,756.81/x
  3. Step 3: Cross multiply
    220,418.35x = 303,895.76 × 142,756.81
  4. Step 4: Simplify right side
    220,418.35x = 43,383,187,796.60
  5. Step 5: Solve for x
    x = 43,383,187,796.60/220,418.35
  6. Step 6: Final answer
    x = 196,822.04

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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.