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Finding the Third Proportional to 166,893 and 258,258

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Solution

The third proportional to 166,893 and 258,258 is: 399,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,893 : 258,258 = 258,258 : x
  2. Step 2: Convert to fraction form
    166,893/258,258 = 258,258/x
  3. Step 3: Cross multiply
    166,893x = 258,258 × 258,258
  4. Step 4: Simplify right side
    166,893x = 66,697,194,564
  5. Step 5: Solve for x
    x = 66,697,194,564/166,893
  6. Step 6: Final answer
    x = 399,640.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.