Finding the Fourth Proportional to 201,716.80, 303,231.30 and 142,959.40
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Solution
The fourth proportional to 201,716.80, 303,231.30 and 142,959.40 is: 214,904.09
Step by Step Solution
- Step 1: Write the proportion equation
201,716.80 : 303,231.30 = 142,959.40 : x - Step 2: Convert to fraction form
201,716.80/303,231.30 = 142,959.40/x - Step 3: Cross multiply
201,716.80x = 303,231.30 × 142,959.40 - Step 4: Simplify right side
201,716.80x = 43,349,764,709.22 - Step 5: Solve for x
x = 43,349,764,709.22/201,716.80 - Step 6: Final answer
x = 214,904.09
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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.