Finding the Third Proportional to 121,346.44 and 189,942.05
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Solution
The third proportional to 121,346.44 and 189,942.05 is: 297,313.89
Step by Step Solution
- Step 1: Write the proportion equation
121,346.44 : 189,942.05 = 189,942.05 : x - Step 2: Convert to fraction form
121,346.44/189,942.05 = 189,942.05/x - Step 3: Cross multiply
121,346.44x = 189,942.05 × 189,942.05 - Step 4: Simplify right side
121,346.44x = 36,077,981,171.06 - Step 5: Solve for x
x = 36,077,981,171.06/121,346.44 - Step 6: Final answer
x = 297,313.89
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.