Finding the Fourth Proportional to 324,231.36, 447,220.80 and 281,716.80
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Solution
The fourth proportional to 324,231.36, 447,220.80 and 281,716.80 is: 388,579.35
Step by Step Solution
- Step 1: Write the proportion equation
324,231.36 : 447,220.80 = 281,716.80 : x - Step 2: Convert to fraction form
324,231.36/447,220.80 = 281,716.80/x - Step 3: Cross multiply
324,231.36x = 447,220.80 × 281,716.80 - Step 4: Simplify right side
324,231.36x = 125,989,612,669.44 - Step 5: Solve for x
x = 125,989,612,669.44/324,231.36 - Step 6: Final answer
x = 388,579.35
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1.5x scale
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.