Finding the Fourth Proportional to 209,866.92, 289,608.99 and 114,371.70
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Solution
The fourth proportional to 209,866.92, 289,608.99 and 114,371.70 is: 157,828.94
Step by Step Solution
- Step 1: Write the proportion equation
209,866.92 : 289,608.99 = 114,371.70 : x - Step 2: Convert to fraction form
209,866.92/289,608.99 = 114,371.70/x - Step 3: Cross multiply
209,866.92x = 289,608.99 × 114,371.70 - Step 4: Simplify right side
209,866.92x = 33,123,072,521.58 - Step 5: Solve for x
x = 33,123,072,521.58/209,866.92 - Step 6: Final answer
x = 157,828.94
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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.