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Finding the Fourth Proportional to 166,906, 250,398.38 and 54,585.78

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Solution

The fourth proportional to 166,906, 250,398.38 and 54,585.78 is: 81,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,906 : 250,398.38 = 54,585.78 : x
  2. Step 2: Convert to fraction form
    166,906/250,398.38 = 54,585.78/x
  3. Step 3: Cross multiply
    166,906x = 250,398.38 × 54,585.78
  4. Step 4: Simplify right side
    166,906x = 13,668,190,883.04
  5. Step 5: Solve for x
    x = 13,668,190,883.04/166,906
  6. Step 6: Final answer
    x = 81,891.55

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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.