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Finding the Fourth Proportional to 206,163.02, 308,980.27 and 179,397.79

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Solution

The fourth proportional to 206,163.02, 308,980.27 and 179,397.79 is: 268,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,163.02 : 308,980.27 = 179,397.79 : x
  2. Step 2: Convert to fraction form
    206,163.02/308,980.27 = 179,397.79/x
  3. Step 3: Cross multiply
    206,163.02x = 308,980.27 × 179,397.79
  4. Step 4: Simplify right side
    206,163.02x = 55,430,377,043.40
  5. Step 5: Solve for x
    x = 55,430,377,043.40/206,163.02
  6. Step 6: Final answer
    x = 268,866.73

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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.