Finding the Fourth Proportional to 269,013.28, 371,224.09 and 154,286.03
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Solution
The fourth proportional to 269,013.28, 371,224.09 and 154,286.03 is: 212,906.55
Step by Step Solution
- Step 1: Write the proportion equation
269,013.28 : 371,224.09 = 154,286.03 : x - Step 2: Convert to fraction form
269,013.28/371,224.09 = 154,286.03/x - Step 3: Cross multiply
269,013.28x = 371,224.09 × 154,286.03 - Step 4: Simplify right side
269,013.28x = 57,274,690,119.25 - Step 5: Solve for x
x = 57,274,690,119.25/269,013.28 - Step 6: Final answer
x = 212,906.55
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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.