Home / 306,086.12-422,277.36-177,000.72

Finding the Fourth Proportional to 306,086.12, 422,277.36 and 177,000.72

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Solution

The fourth proportional to 306,086.12, 422,277.36 and 177,000.72 is: 244,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,086.12 : 422,277.36 = 177,000.72 : x
  2. Step 2: Convert to fraction form
    306,086.12/422,277.36 = 177,000.72/x
  3. Step 3: Cross multiply
    306,086.12x = 422,277.36 × 177,000.72
  4. Step 4: Simplify right side
    306,086.12x = 74,743,396,759.70
  5. Step 5: Solve for x
    x = 74,743,396,759.70/306,086.12
  6. Step 6: Final answer
    x = 244,190.74

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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.