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Finding the Third Proportional to 163,288 and 252,318

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Solution

The third proportional to 163,288 and 252,318 is: 389,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,288 : 252,318 = 252,318 : x
  2. Step 2: Convert to fraction form
    163,288/252,318 = 252,318/x
  3. Step 3: Cross multiply
    163,288x = 252,318 × 252,318
  4. Step 4: Simplify right side
    163,288x = 63,664,373,124
  5. Step 5: Solve for x
    x = 63,664,373,124/163,288
  6. Step 6: Final answer
    x = 389,890.09

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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.