Finding the Third Proportional to 129,782.25 and 287,745.75
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Solution
The third proportional to 129,782.25 and 287,745.75 is: 637,973.35
Step by Step Solution
- Step 1: Write the proportion equation
129,782.25 : 287,745.75 = 287,745.75 : x - Step 2: Convert to fraction form
129,782.25/287,745.75 = 287,745.75/x - Step 3: Cross multiply
129,782.25x = 287,745.75 × 287,745.75 - Step 4: Simplify right side
129,782.25x = 82,797,616,643.06 - Step 5: Solve for x
x = 82,797,616,643.06/129,782.25 - Step 6: Final answer
x = 637,973.35
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Why These Related Problems?
These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.