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Finding the Third Proportional to 273,254 and 418,173

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Solution

The third proportional to 273,254 and 418,173 is: 639,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,254 : 418,173 = 418,173 : x
  2. Step 2: Convert to fraction form
    273,254/418,173 = 418,173/x
  3. Step 3: Cross multiply
    273,254x = 418,173 × 418,173
  4. Step 4: Simplify right side
    273,254x = 174,868,657,929
  5. Step 5: Solve for x
    x = 174,868,657,929/273,254
  6. Step 6: Final answer
    x = 639,949.12

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.