Finding the Fourth Proportional to 407,073.26, 561,738.16 and 225,772.18
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Solution
The fourth proportional to 407,073.26, 561,738.16 and 225,772.18 is: 311,552.89
Step by Step Solution
- Step 1: Write the proportion equation
407,073.26 : 561,738.16 = 225,772.18 : x - Step 2: Convert to fraction form
407,073.26/561,738.16 = 225,772.18/x - Step 3: Cross multiply
407,073.26x = 561,738.16 × 225,772.18 - Step 4: Simplify right side
407,073.26x = 126,824,848,972.39 - Step 5: Solve for x
x = 126,824,848,972.39/407,073.26 - Step 6: Final answer
x = 311,552.89
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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.