Finding the Fourth Proportional to 395,362.62, 545,639.49 and 225,622.26
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Solution
The fourth proportional to 395,362.62, 545,639.49 and 225,622.26 is: 311,381.02
Step by Step Solution
- Step 1: Write the proportion equation
395,362.62 : 545,639.49 = 225,622.26 : x - Step 2: Convert to fraction form
395,362.62/545,639.49 = 225,622.26/x - Step 3: Cross multiply
395,362.62x = 545,639.49 × 225,622.26 - Step 4: Simplify right side
395,362.62x = 123,108,414,879.05 - Step 5: Solve for x
x = 123,108,414,879.05/395,362.62 - Step 6: Final answer
x = 311,381.02
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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.