Finding the Fourth Proportional to 412,738.20, 619,107.30 and 132,283.80
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Solution
The fourth proportional to 412,738.20, 619,107.30 and 132,283.80 is: 198,425.70
Step by Step Solution
- Step 1: Write the proportion equation
412,738.20 : 619,107.30 = 132,283.80 : x - Step 2: Convert to fraction form
412,738.20/619,107.30 = 132,283.80/x - Step 3: Cross multiply
412,738.20x = 619,107.30 × 132,283.80 - Step 4: Simplify right side
412,738.20x = 81,897,866,251.74 - Step 5: Solve for x
x = 81,897,866,251.74/412,738.20 - Step 6: Final answer
x = 198,425.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.