Finding the Fourth Proportional to 215,414.69, 322,620.44 and 207,941.09
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Solution
The fourth proportional to 215,414.69, 322,620.44 and 207,941.09 is: 311,427.44
Step by Step Solution
- Step 1: Write the proportion equation
215,414.69 : 322,620.44 = 207,941.09 : x - Step 2: Convert to fraction form
215,414.69/322,620.44 = 207,941.09/x - Step 3: Cross multiply
215,414.69x = 322,620.44 × 207,941.09 - Step 4: Simplify right side
215,414.69x = 67,086,044,910.17 - Step 5: Solve for x
x = 67,086,044,910.17/215,414.69 - Step 6: Final answer
x = 311,427.44
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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.