Home / 305,766.70-422,157.89-198,642.04

Finding the Fourth Proportional to 305,766.70, 422,157.89 and 198,642.04

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Solution

The fourth proportional to 305,766.70, 422,157.89 and 198,642.04 is: 274,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,766.70 : 422,157.89 = 198,642.04 : x
  2. Step 2: Convert to fraction form
    305,766.70/422,157.89 = 198,642.04/x
  3. Step 3: Cross multiply
    305,766.70x = 422,157.89 × 198,642.04
  4. Step 4: Simplify right side
    305,766.70x = 83,858,304,471.70
  5. Step 5: Solve for x
    x = 83,858,304,471.70/305,766.70
  6. Step 6: Final answer
    x = 274,255.84

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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.