Finding the Fourth Proportional to 221,428.14, 332,194.92 and 71,668.44
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Solution
The fourth proportional to 221,428.14, 332,194.92 and 71,668.44 is: 107,519.72
Step by Step Solution
- Step 1: Write the proportion equation
221,428.14 : 332,194.92 = 71,668.44 : x - Step 2: Convert to fraction form
221,428.14/332,194.92 = 71,668.44/x - Step 3: Cross multiply
221,428.14x = 332,194.92 × 71,668.44 - Step 4: Simplify right side
221,428.14x = 23,807,891,692.32 - Step 5: Solve for x
x = 23,807,891,692.32/221,428.14 - Step 6: Final answer
x = 107,519.72
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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.