Finding the Fourth Proportional to 207,876.60, 311,906.70 and 101,201.40
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Solution
The fourth proportional to 207,876.60, 311,906.70 and 101,201.40 is: 151,846.79
Step by Step Solution
- Step 1: Write the proportion equation
207,876.60 : 311,906.70 = 101,201.40 : x - Step 2: Convert to fraction form
207,876.60/311,906.70 = 101,201.40/x - Step 3: Cross multiply
207,876.60x = 311,906.70 × 101,201.40 - Step 4: Simplify right side
207,876.60x = 31,565,394,709.38 - Step 5: Solve for x
x = 31,565,394,709.38/207,876.60 - Step 6: Final answer
x = 151,846.79
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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.