Finding the Third Proportional to 138,272.06 and 215,427.09
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Solution
The third proportional to 138,272.06 and 215,427.09 is: 335,634.20
Step by Step Solution
- Step 1: Write the proportion equation
138,272.06 : 215,427.09 = 215,427.09 : x - Step 2: Convert to fraction form
138,272.06/215,427.09 = 215,427.09/x - Step 3: Cross multiply
138,272.06x = 215,427.09 × 215,427.09 - Step 4: Simplify right side
138,272.06x = 46,408,832,721.57 - Step 5: Solve for x
x = 46,408,832,721.57/138,272.06 - Step 6: Final answer
x = 335,634.20
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.