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Finding the Fourth Proportional to 306,446.73, 422,889.17 and 170,481.21

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Solution

The fourth proportional to 306,446.73, 422,889.17 and 170,481.21 is: 235,260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,446.73 : 422,889.17 = 170,481.21 : x
  2. Step 2: Convert to fraction form
    306,446.73/422,889.17 = 170,481.21/x
  3. Step 3: Cross multiply
    306,446.73x = 422,889.17 × 170,481.21
  4. Step 4: Simplify right side
    306,446.73x = 72,094,656,545.09
  5. Step 5: Solve for x
    x = 72,094,656,545.09/306,446.73
  6. Step 6: Final answer
    x = 235,260.00

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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.