Finding the Fourth Proportional to 209,757.15, 289,365.68 and 141,797.95
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Solution
The fourth proportional to 209,757.15, 289,365.68 and 141,797.95 is: 195,614.12
Step by Step Solution
- Step 1: Write the proportion equation
209,757.15 : 289,365.68 = 141,797.95 : x - Step 2: Convert to fraction form
209,757.15/289,365.68 = 141,797.95/x - Step 3: Cross multiply
209,757.15x = 289,365.68 × 141,797.95 - Step 4: Simplify right side
209,757.15x = 41,031,459,855.44 - Step 5: Solve for x
x = 41,031,459,855.44/209,757.15 - Step 6: Final answer
x = 195,614.12
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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.