Finding the Fourth Proportional to 209,838.09, 289,576.57 and 114,344.79
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Solution
The fourth proportional to 209,838.09, 289,576.57 and 114,344.79 is: 157,795.81
Step by Step Solution
- Step 1: Write the proportion equation
209,838.09 : 289,576.57 = 114,344.79 : x - Step 2: Convert to fraction form
209,838.09/289,576.57 = 114,344.79/x - Step 3: Cross multiply
209,838.09x = 289,576.57 × 114,344.79 - Step 4: Simplify right side
209,838.09x = 33,111,571,742.63 - Step 5: Solve for x
x = 33,111,571,742.63/209,838.09 - Step 6: Final answer
x = 157,795.81
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1.5x scale
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.