Finding the Third Proportional to 311,932.50 and 638,619.75
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Solution
The third proportional to 311,932.50 and 638,619.75 is: 1,307,446.92
Step by Step Solution
- Step 1: Write the proportion equation
311,932.50 : 638,619.75 = 638,619.75 : x - Step 2: Convert to fraction form
311,932.50/638,619.75 = 638,619.75/x - Step 3: Cross multiply
311,932.50x = 638,619.75 × 638,619.75 - Step 4: Simplify right side
311,932.50x = 407,835,185,090.06 - Step 5: Solve for x
x = 407,835,185,090.06/311,932.50 - Step 6: Final answer
x = 1,307,446.92
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Why These Related Problems?
These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.