Finding the Fourth Proportional to 378,574.19, 567,738.39 and 125,786.79
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Solution
The fourth proportional to 378,574.19, 567,738.39 and 125,786.79 is: 188,639.35
Step by Step Solution
- Step 1: Write the proportion equation
378,574.19 : 567,738.39 = 125,786.79 : x - Step 2: Convert to fraction form
378,574.19/567,738.39 = 125,786.79/x - Step 3: Cross multiply
378,574.19x = 567,738.39 × 125,786.79 - Step 4: Simplify right side
378,574.19x = 71,413,990,109.57 - Step 5: Solve for x
x = 71,413,990,109.57/378,574.19 - Step 6: Final answer
x = 188,639.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.