Find the ratio of `3` `km` to `300` `m`.

Explanation

To find the ratio of 3 km to 300 m, we need to ensure that both quantities are in the same unit. Here’s a step-by-step solution:

### Step 1: Convert kilometers to meters
1 kilometer (km) is equal to 1000 meters (m). Therefore, we need to convert 3 km into meters:
\[ 3 \text{ km} = 3 \times 1000 \text{ m} = 3000 \text{ m} \]

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