Finding the Fourth Proportional to 209,591.26, 289,428.09 and 133,134.99
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Solution
The fourth proportional to 209,591.26, 289,428.09 and 133,134.99 is: 183,848.34
Step by Step Solution
- Step 1: Write the proportion equation
209,591.26 : 289,428.09 = 133,134.99 : x - Step 2: Convert to fraction form
209,591.26/289,428.09 = 133,134.99/x - Step 3: Cross multiply
209,591.26x = 289,428.09 × 133,134.99 - Step 4: Simplify right side
209,591.26x = 38,533,004,283.26 - Step 5: Solve for x
x = 38,533,004,283.26/209,591.26 - Step 6: Final answer
x = 183,848.34
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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.