Finding the Fourth Proportional to 207,886.20, 311,861.97 and 67,612.02
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Solution
The fourth proportional to 207,886.20, 311,861.97 and 67,612.02 is: 101,428.66
Step by Step Solution
- Step 1: Write the proportion equation
207,886.20 : 311,861.97 = 67,612.02 : x - Step 2: Convert to fraction form
207,886.20/311,861.97 = 67,612.02/x - Step 3: Cross multiply
207,886.20x = 311,861.97 × 67,612.02 - Step 4: Simplify right side
207,886.20x = 21,085,617,752.88 - Step 5: Solve for x
x = 21,085,617,752.88/207,886.20 - Step 6: Final answer
x = 101,428.66
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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.