Finding the Third Proportional to 311,981.50 and 445,828.75
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Solution
The third proportional to 311,981.50 and 445,828.75 is: 637,099.55
Step by Step Solution
- Step 1: Write the proportion equation
311,981.50 : 445,828.75 = 445,828.75 : x - Step 2: Convert to fraction form
311,981.50/445,828.75 = 445,828.75/x - Step 3: Cross multiply
311,981.50x = 445,828.75 × 445,828.75 - Step 4: Simplify right side
311,981.50x = 198,763,274,326.56 - Step 5: Solve for x
x = 198,763,274,326.56/311,981.50 - Step 6: Final answer
x = 637,099.55
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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.