A scientist analyzes four samples of compounds. He finds the first compound contains 10 grams of sodium, 211 grams of potassium, 7 grams of lead, and 215 grams of zinc. The second sample contains 169 grams of zinc, 108 grams of lead, 88 grams of potassium, and 30 grams of sodium. The third sample contains 55 grams of lead, 254 grams of potassium, 56 grams of sodium, and 129 grams of zinc. The last sample contains 89 grams of sodium, 38 grams of lead, 64 grams of zinc, and 150 grams of potassium. Use these data to make a table.