Finding the Fourth Proportional to 209,754.02, 289,438.97 and 117,858.71
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Solution
The fourth proportional to 209,754.02, 289,438.97 and 117,858.71 is: 162,632.89
Step by Step Solution
- Step 1: Write the proportion equation
209,754.02 : 289,438.97 = 117,858.71 : x - Step 2: Convert to fraction form
209,754.02/289,438.97 = 117,858.71/x - Step 3: Cross multiply
209,754.02x = 289,438.97 × 117,858.71 - Step 4: Simplify right side
209,754.02x = 34,112,901,591.44 - Step 5: Solve for x
x = 34,112,901,591.44/209,754.02 - Step 6: Final answer
x = 162,632.89
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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.