Finding the Fourth Proportional to 305,121.21, 421,092.12 and 169,197.77
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Solution
The fourth proportional to 305,121.21, 421,092.12 and 169,197.77 is: 233,506.70
Step by Step Solution
- Step 1: Write the proportion equation
305,121.21 : 421,092.12 = 169,197.77 : x - Step 2: Convert to fraction form
305,121.21/421,092.12 = 169,197.77/x - Step 3: Cross multiply
305,121.21x = 421,092.12 × 169,197.77 - Step 4: Simplify right side
305,121.21x = 71,247,847,668.57 - Step 5: Solve for x
x = 71,247,847,668.57/305,121.21 - Step 6: Final answer
x = 233,506.70
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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.