Finding the Fourth Proportional to 200,576.91, 276,921.99 and 129,081.18
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Solution
The fourth proportional to 200,576.91, 276,921.99 and 129,081.18 is: 178,213.02
Step by Step Solution
- Step 1: Write the proportion equation
200,576.91 : 276,921.99 = 129,081.18 : x - Step 2: Convert to fraction form
200,576.91/276,921.99 = 129,081.18/x - Step 3: Cross multiply
200,576.91x = 276,921.99 × 129,081.18 - Step 4: Simplify right side
200,576.91x = 35,745,417,237.15 - Step 5: Solve for x
x = 35,745,417,237.15/200,576.91 - Step 6: Final answer
x = 178,213.02
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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.