Finding the Fourth Proportional to 208,091.24, 312,063.06 and 74,935.70
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Solution
The fourth proportional to 208,091.24, 312,063.06 and 74,935.70 is: 112,376.97
Step by Step Solution
- Step 1: Write the proportion equation
208,091.24 : 312,063.06 = 74,935.70 : x - Step 2: Convert to fraction form
208,091.24/312,063.06 = 74,935.70/x - Step 3: Cross multiply
208,091.24x = 312,063.06 × 74,935.70 - Step 4: Simplify right side
208,091.24x = 23,384,663,845.24 - Step 5: Solve for x
x = 23,384,663,845.24/208,091.24 - Step 6: Final answer
x = 112,376.97
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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.