Finding the Fourth Proportional to 396,571.36, 547,272.72 and 215,284.96
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Solution
The fourth proportional to 396,571.36, 547,272.72 and 215,284.96 is: 297,095.55
Step by Step Solution
- Step 1: Write the proportion equation
396,571.36 : 547,272.72 = 215,284.96 : x - Step 2: Convert to fraction form
396,571.36/547,272.72 = 215,284.96/x - Step 3: Cross multiply
396,571.36x = 547,272.72 × 215,284.96 - Step 4: Simplify right side
396,571.36x = 117,819,585,634.29 - Step 5: Solve for x
x = 117,819,585,634.29/396,571.36 - Step 6: Final answer
x = 297,095.55
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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.