Finding the Third Proportional to 128,798.44 and 189,470.81
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Solution
The third proportional to 128,798.44 and 189,470.81 is: 278,723.79
Step by Step Solution
- Step 1: Write the proportion equation
128,798.44 : 189,470.81 = 189,470.81 : x - Step 2: Convert to fraction form
128,798.44/189,470.81 = 189,470.81/x - Step 3: Cross multiply
128,798.44x = 189,470.81 × 189,470.81 - Step 4: Simplify right side
128,798.44x = 35,899,188,789.41 - Step 5: Solve for x
x = 35,899,188,789.41/128,798.44 - Step 6: Final answer
x = 278,723.79
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.