Finding the Fourth Proportional to 207,465.80, 311,198.70 and 57,705.80
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Solution
The fourth proportional to 207,465.80, 311,198.70 and 57,705.80 is: 86,558.70
Step by Step Solution
- Step 1: Write the proportion equation
207,465.80 : 311,198.70 = 57,705.80 : x - Step 2: Convert to fraction form
207,465.80/311,198.70 = 57,705.80/x - Step 3: Cross multiply
207,465.80x = 311,198.70 × 57,705.80 - Step 4: Simplify right side
207,465.80x = 17,957,969,942.46 - Step 5: Solve for x
x = 17,957,969,942.46/207,465.80 - Step 6: Final answer
x = 86,558.70
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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.