Finding the Fourth Proportional to 203,907.80, 305,861.70 and 151,419.80
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Solution
The fourth proportional to 203,907.80, 305,861.70 and 151,419.80 is: 227,129.70
Step by Step Solution
- Step 1: Write the proportion equation
203,907.80 : 305,861.70 = 151,419.80 : x - Step 2: Convert to fraction form
203,907.80/305,861.70 = 151,419.80/x - Step 3: Cross multiply
203,907.80x = 305,861.70 × 151,419.80 - Step 4: Simplify right side
203,907.80x = 46,313,517,441.66 - Step 5: Solve for x
x = 46,313,517,441.66/203,907.80 - Step 6: Final answer
x = 227,129.70
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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.