Finding the Fourth Proportional to 207,941.70, 311,912.55 and 194,819.70
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Solution
The fourth proportional to 207,941.70, 311,912.55 and 194,819.70 is: 292,229.55
Step by Step Solution
- Step 1: Write the proportion equation
207,941.70 : 311,912.55 = 194,819.70 : x - Step 2: Convert to fraction form
207,941.70/311,912.55 = 194,819.70/x - Step 3: Cross multiply
207,941.70x = 311,912.55 × 194,819.70 - Step 4: Simplify right side
207,941.70x = 60,766,709,417.24 - Step 5: Solve for x
x = 60,766,709,417.24/207,941.70 - Step 6: Final answer
x = 292,229.55
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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.