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Finding the Fourth Proportional to 259,661.01, 388,466.63 and 196,662.66

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Solution

The fourth proportional to 259,661.01, 388,466.63 and 196,662.66 is: 294,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,661.01 : 388,466.63 = 196,662.66 : x
  2. Step 2: Convert to fraction form
    259,661.01/388,466.63 = 196,662.66/x
  3. Step 3: Cross multiply
    259,661.01x = 388,466.63 × 196,662.66
  4. Step 4: Simplify right side
    259,661.01x = 76,396,880,777.04
  5. Step 5: Solve for x
    x = 76,396,880,777.04/259,661.01
  6. Step 6: Final answer
    x = 294,217.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.