Finding the Fourth Proportional to 207,619.20, 311,163.93 and 107,585.82
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Solution
The fourth proportional to 207,619.20, 311,163.93 and 107,585.82 is: 161,241.48
Step by Step Solution
- Step 1: Write the proportion equation
207,619.20 : 311,163.93 = 107,585.82 : x - Step 2: Convert to fraction form
207,619.20/311,163.93 = 107,585.82/x - Step 3: Cross multiply
207,619.20x = 311,163.93 × 107,585.82 - Step 4: Simplify right side
207,619.20x = 33,476,826,563.47 - Step 5: Solve for x
x = 33,476,826,563.47/207,619.20 - Step 6: Final answer
x = 161,241.48
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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.