Finding the Fourth Proportional to 207,112.12, 310,786.14 and 80,735.88
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Solution
The fourth proportional to 207,112.12, 310,786.14 and 80,735.88 is: 121,149.80
Step by Step Solution
- Step 1: Write the proportion equation
207,112.12 : 310,786.14 = 80,735.88 : x - Step 2: Convert to fraction form
207,112.12/310,786.14 = 80,735.88/x - Step 3: Cross multiply
207,112.12x = 310,786.14 × 80,735.88 - Step 4: Simplify right side
207,112.12x = 25,091,592,504.70 - Step 5: Solve for x
x = 25,091,592,504.70/207,112.12 - Step 6: Final answer
x = 121,149.80
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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.