Finding the Third Proportional to 128,126.81 and 306,012.94
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Solution
The third proportional to 128,126.81 and 306,012.94 is: 730,869.02
Step by Step Solution
- Step 1: Write the proportion equation
128,126.81 : 306,012.94 = 306,012.94 : x - Step 2: Convert to fraction form
128,126.81/306,012.94 = 306,012.94/x - Step 3: Cross multiply
128,126.81x = 306,012.94 × 306,012.94 - Step 4: Simplify right side
128,126.81x = 93,643,917,917.38 - Step 5: Solve for x
x = 93,643,917,917.38/128,126.81 - Step 6: Final answer
x = 730,869.02
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Why These Related Problems?
These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.