Finding the Fourth Proportional to 207,911.70, 311,211.45 and 201,350.70
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Solution
The fourth proportional to 207,911.70, 311,211.45 and 201,350.70 is: 301,390.65
Step by Step Solution
- Step 1: Write the proportion equation
207,911.70 : 311,211.45 = 201,350.70 : x - Step 2: Convert to fraction form
207,911.70/311,211.45 = 201,350.70/x - Step 3: Cross multiply
207,911.70x = 311,211.45 × 201,350.70 - Step 4: Simplify right side
207,911.70x = 62,662,643,305.52 - Step 5: Solve for x
x = 62,662,643,305.52/207,911.70 - Step 6: Final answer
x = 301,390.65
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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.