Finding the Fourth Proportional to 208,844.63, 312,705.68 and 132,529.99
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Solution
The fourth proportional to 208,844.63, 312,705.68 and 132,529.99 is: 198,438.81
Step by Step Solution
- Step 1: Write the proportion equation
208,844.63 : 312,705.68 = 132,529.99 : x - Step 2: Convert to fraction form
208,844.63/312,705.68 = 132,529.99/x - Step 3: Cross multiply
208,844.63x = 312,705.68 × 132,529.99 - Step 4: Simplify right side
208,844.63x = 41,442,880,530.73 - Step 5: Solve for x
x = 41,442,880,530.73/208,844.63 - Step 6: Final answer
x = 198,438.81
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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.