Finding the Fourth Proportional to 209,850.21, 314,881.17 and 103,229.70
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Solution
The fourth proportional to 209,850.21, 314,881.17 and 103,229.70 is: 154,896.62
Step by Step Solution
- Step 1: Write the proportion equation
209,850.21 : 314,881.17 = 103,229.70 : x - Step 2: Convert to fraction form
209,850.21/314,881.17 = 103,229.70/x - Step 3: Cross multiply
209,850.21x = 314,881.17 × 103,229.70 - Step 4: Simplify right side
209,850.21x = 32,505,088,714.75 - Step 5: Solve for x
x = 32,505,088,714.75/209,850.21 - Step 6: Final answer
x = 154,896.62
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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.