Finding the Fourth Proportional to 209,857.22, 314,891.68 and 103,236.70
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Solution
The fourth proportional to 209,857.22, 314,891.68 and 103,236.70 is: 154,907.12
Step by Step Solution
- Step 1: Write the proportion equation
209,857.22 : 314,891.68 = 103,236.70 : x - Step 2: Convert to fraction form
209,857.22/314,891.68 = 103,236.70/x - Step 3: Cross multiply
209,857.22x = 314,891.68 × 103,236.70 - Step 4: Simplify right side
209,857.22x = 32,508,377,900.66 - Step 5: Solve for x
x = 32,508,377,900.66/209,857.22 - Step 6: Final answer
x = 154,907.12
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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.