Finding the Fourth Proportional to 207,917.70, 311,876.55 and 194,795.70
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Solution
The fourth proportional to 207,917.70, 311,876.55 and 194,795.70 is: 292,193.55
Step by Step Solution
- Step 1: Write the proportion equation
207,917.70 : 311,876.55 = 194,795.70 : x - Step 2: Convert to fraction form
207,917.70/311,876.55 = 194,795.70/x - Step 3: Cross multiply
207,917.70x = 311,876.55 × 194,795.70 - Step 4: Simplify right side
207,917.70x = 60,752,210,870.84 - Step 5: Solve for x
x = 60,752,210,870.84/207,917.70 - Step 6: Final answer
x = 292,193.55
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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.