Finding the Fourth Proportional to 352,761.05, 486,921.30 and 225,436.75
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Solution
The fourth proportional to 352,761.05, 486,921.30 and 225,436.75 is: 311,173.68
Step by Step Solution
- Step 1: Write the proportion equation
352,761.05 : 486,921.30 = 225,436.75 : x - Step 2: Convert to fraction form
352,761.05/486,921.30 = 225,436.75/x - Step 3: Cross multiply
352,761.05x = 486,921.30 × 225,436.75 - Step 4: Simplify right side
352,761.05x = 109,769,955,377.78 - Step 5: Solve for x
x = 109,769,955,377.78/352,761.05 - Step 6: Final answer
x = 311,173.68
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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.