Finding the Fourth Proportional to 207,669.74, 311,371.53 and 87,694.19
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Solution
The fourth proportional to 207,669.74, 311,371.53 and 87,694.19 is: 131,485.09
Step by Step Solution
- Step 1: Write the proportion equation
207,669.74 : 311,371.53 = 87,694.19 : x - Step 2: Convert to fraction form
207,669.74/311,371.53 = 87,694.19/x - Step 3: Cross multiply
207,669.74x = 311,371.53 × 87,694.19 - Step 4: Simplify right side
207,669.74x = 27,305,474,112.41 - Step 5: Solve for x
x = 27,305,474,112.41/207,669.74 - Step 6: Final answer
x = 131,485.09
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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.