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Finding the Fourth Proportional to 206,167.74, 308,629.08 and 186,455.58

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Solution

The fourth proportional to 206,167.74, 308,629.08 and 186,455.58 is: 279,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,167.74 : 308,629.08 = 186,455.58 : x
  2. Step 2: Convert to fraction form
    206,167.74/308,629.08 = 186,455.58/x
  3. Step 3: Cross multiply
    206,167.74x = 308,629.08 × 186,455.58
  4. Step 4: Simplify right side
    206,167.74x = 57,545,614,116.27
  5. Step 5: Solve for x
    x = 57,545,614,116.27/206,167.74
  6. Step 6: Final answer
    x = 279,120.36

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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.