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Finding the Fourth Proportional to 306,483.28, 422,805 and 179,164.24

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Solution

The fourth proportional to 306,483.28, 422,805 and 179,164.24 is: 247,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,483.28 : 422,805 = 179,164.24 : x
  2. Step 2: Convert to fraction form
    306,483.28/422,805 = 179,164.24/x
  3. Step 3: Cross multiply
    306,483.28x = 422,805 × 179,164.24
  4. Step 4: Simplify right side
    306,483.28x = 75,751,536,493.20
  5. Step 5: Solve for x
    x = 75,751,536,493.20/306,483.28
  6. Step 6: Final answer
    x = 247,163.68

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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.