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Finding the Fourth Proportional to 312,245.92, 430,899.03 and 169,005.73

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Solution

The fourth proportional to 312,245.92, 430,899.03 and 169,005.73 is: 233,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,245.92 : 430,899.03 = 169,005.73 : x
  2. Step 2: Convert to fraction form
    312,245.92/430,899.03 = 169,005.73/x
  3. Step 3: Cross multiply
    312,245.92x = 430,899.03 × 169,005.73
  4. Step 4: Simplify right side
    312,245.92x = 72,824,405,121.44
  5. Step 5: Solve for x
    x = 72,824,405,121.44/312,245.92
  6. Step 6: Final answer
    x = 233,227.72

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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.