Finding the Fourth Proportional to 200,542.60, 276,874.62 and 129,046.87
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Solution
The fourth proportional to 200,542.60, 276,874.62 and 129,046.87 is: 178,165.65
Step by Step Solution
- Step 1: Write the proportion equation
200,542.60 : 276,874.62 = 129,046.87 : x - Step 2: Convert to fraction form
200,542.60/276,874.62 = 129,046.87/x - Step 3: Cross multiply
200,542.60x = 276,874.62 × 129,046.87 - Step 4: Simplify right side
200,542.60x = 35,729,803,093.44 - Step 5: Solve for x
x = 35,729,803,093.44/200,542.60 - Step 6: Final answer
x = 178,165.65
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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.