Finding the Fourth Proportional to 209,983.20, 289,778.18 and 114,491.49
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Solution
The fourth proportional to 209,983.20, 289,778.18 and 114,491.49 is: 157,999.00
Step by Step Solution
- Step 1: Write the proportion equation
209,983.20 : 289,778.18 = 114,491.49 : x - Step 2: Convert to fraction form
209,983.20/289,778.18 = 114,491.49/x - Step 3: Cross multiply
209,983.20x = 289,778.18 × 114,491.49 - Step 4: Simplify right side
209,983.20x = 33,177,135,025.23 - Step 5: Solve for x
x = 33,177,135,025.23/209,983.20 - Step 6: Final answer
x = 157,999.00
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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.