Finding the Fourth Proportional to 305,694.38, 421,164.30 and 236,546.08
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Solution
The fourth proportional to 305,694.38, 421,164.30 and 236,546.08 is: 325,896.62
Step by Step Solution
- Step 1: Write the proportion equation
305,694.38 : 421,164.30 = 236,546.08 : x - Step 2: Convert to fraction form
305,694.38/421,164.30 = 236,546.08/x - Step 3: Cross multiply
305,694.38x = 421,164.30 × 236,546.08 - Step 4: Simplify right side
305,694.38x = 99,624,764,200.94 - Step 5: Solve for x
x = 99,624,764,200.94/305,694.38 - Step 6: Final answer
x = 325,896.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.