Finding the Fourth Proportional to 202,477.80, 303,716.70 and 90,157.80
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Solution
The fourth proportional to 202,477.80, 303,716.70 and 90,157.80 is: 135,236.70
Step by Step Solution
- Step 1: Write the proportion equation
202,477.80 : 303,716.70 = 90,157.80 : x - Step 2: Convert to fraction form
202,477.80/303,716.70 = 90,157.80/x - Step 3: Cross multiply
202,477.80x = 303,716.70 × 90,157.80 - Step 4: Simplify right side
202,477.80x = 27,382,429,495.26 - Step 5: Solve for x
x = 27,382,429,495.26/202,477.80 - Step 6: Final answer
x = 135,236.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.