Finding the Fourth Proportional to 328,920.67, 453,921.42 and 201,571.66
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Solution
The fourth proportional to 328,920.67, 453,921.42 and 201,571.66 is: 278,175.57
Step by Step Solution
- Step 1: Write the proportion equation
328,920.67 : 453,921.42 = 201,571.66 : x - Step 2: Convert to fraction form
328,920.67/453,921.42 = 201,571.66/x - Step 3: Cross multiply
328,920.67x = 453,921.42 × 201,571.66 - Step 4: Simplify right side
328,920.67x = 91,497,694,138.96 - Step 5: Solve for x
x = 91,497,694,138.96/328,920.67 - Step 6: Final answer
x = 278,175.57
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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.