Finding the Fourth Proportional to 305,578.44, 421,702.74 and 169,621.14
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Solution
The fourth proportional to 305,578.44, 421,702.74 and 169,621.14 is: 234,079.67
Step by Step Solution
- Step 1: Write the proportion equation
305,578.44 : 421,702.74 = 169,621.14 : x - Step 2: Convert to fraction form
305,578.44/421,702.74 = 169,621.14/x - Step 3: Cross multiply
305,578.44x = 421,702.74 × 169,621.14 - Step 4: Simplify right side
305,578.44x = 71,529,699,499.92 - Step 5: Solve for x
x = 71,529,699,499.92/305,578.44 - Step 6: Final answer
x = 234,079.67
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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.