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Finding the Third Proportional to 163,458 and 253,206

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Solution

The third proportional to 163,458 and 253,206 is: 392,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,458 : 253,206 = 253,206 : x
  2. Step 2: Convert to fraction form
    163,458/253,206 = 253,206/x
  3. Step 3: Cross multiply
    163,458x = 253,206 × 253,206
  4. Step 4: Simplify right side
    163,458x = 64,113,278,436
  5. Step 5: Solve for x
    x = 64,113,278,436/163,458
  6. Step 6: Final answer
    x = 392,230.90

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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.