Finding the Fourth Proportional to 305,532.75, 421,635.21 and 171,396.75
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Solution
The fourth proportional to 305,532.75, 421,635.21 and 171,396.75 is: 236,527.52
Step by Step Solution
- Step 1: Write the proportion equation
305,532.75 : 421,635.21 = 171,396.75 : x - Step 2: Convert to fraction form
305,532.75/421,635.21 = 171,396.75/x - Step 3: Cross multiply
305,532.75x = 421,635.21 × 171,396.75 - Step 4: Simplify right side
305,532.75x = 72,266,904,679.57 - Step 5: Solve for x
x = 72,266,904,679.57/305,532.75 - Step 6: Final answer
x = 236,527.52
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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.