Finding the Fourth Proportional to 321,808.68, 444,116.84 and 178,569.09
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Solution
The fourth proportional to 321,808.68, 444,116.84 and 178,569.09 is: 246,436.92
Step by Step Solution
- Step 1: Write the proportion equation
321,808.68 : 444,116.84 = 178,569.09 : x - Step 2: Convert to fraction form
321,808.68/444,116.84 = 178,569.09/x - Step 3: Cross multiply
321,808.68x = 444,116.84 × 178,569.09 - Step 4: Simplify right side
321,808.68x = 79,305,539,079.63 - Step 5: Solve for x
x = 79,305,539,079.63/321,808.68 - Step 6: Final answer
x = 246,436.92
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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.