Finding the Third Proportional to 128,265.19 and 296,921.81
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Solution
The third proportional to 128,265.19 and 296,921.81 is: 687,345.99
Step by Step Solution
- Step 1: Write the proportion equation
128,265.19 : 296,921.81 = 296,921.81 : x - Step 2: Convert to fraction form
128,265.19/296,921.81 = 296,921.81/x - Step 3: Cross multiply
128,265.19x = 296,921.81 × 296,921.81 - Step 4: Simplify right side
128,265.19x = 88,162,562,738.29 - Step 5: Solve for x
x = 88,162,562,738.29/128,265.19 - Step 6: Final answer
x = 687,345.99
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These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.