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Finding the Third Proportional to 303,478 and 437,172

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Solution

The third proportional to 303,478 and 437,172 is: 629,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,478 : 437,172 = 437,172 : x
  2. Step 2: Convert to fraction form
    303,478/437,172 = 437,172/x
  3. Step 3: Cross multiply
    303,478x = 437,172 × 437,172
  4. Step 4: Simplify right side
    303,478x = 191,119,357,584
  5. Step 5: Solve for x
    x = 191,119,357,584/303,478
  6. Step 6: Final answer
    x = 629,763.47

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.