Finding the Third Proportional to 198,428.06 and 307,339.31
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Solution
The third proportional to 198,428.06 and 307,339.31 is: 476,028.70
Step by Step Solution
- Step 1: Write the proportion equation
198,428.06 : 307,339.31 = 307,339.31 : x - Step 2: Convert to fraction form
198,428.06/307,339.31 = 307,339.31/x - Step 3: Cross multiply
198,428.06x = 307,339.31 × 307,339.31 - Step 4: Simplify right side
198,428.06x = 94,457,453,007.97 - Step 5: Solve for x
x = 94,457,453,007.97/198,428.06 - Step 6: Final answer
x = 476,028.70
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.