Finding the Fourth Proportional to 547,211.80, 820,817.70 and 192,107.80
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Solution
The fourth proportional to 547,211.80, 820,817.70 and 192,107.80 is: 288,161.70
Step by Step Solution
- Step 1: Write the proportion equation
547,211.80 : 820,817.70 = 192,107.80 : x - Step 2: Convert to fraction form
547,211.80/820,817.70 = 192,107.80/x - Step 3: Cross multiply
547,211.80x = 820,817.70 × 192,107.80 - Step 4: Simplify right side
547,211.80x = 157,685,482,548.06 - Step 5: Solve for x
x = 157,685,482,548.06/547,211.80 - Step 6: Final answer
x = 288,161.70
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1.5x scale
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.