Finding the Third Proportional to 120,511.13 and 285,513.19
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Solution
The third proportional to 120,511.13 and 285,513.19 is: 676,433.65
Step by Step Solution
- Step 1: Write the proportion equation
120,511.13 : 285,513.19 = 285,513.19 : x - Step 2: Convert to fraction form
120,511.13/285,513.19 = 285,513.19/x - Step 3: Cross multiply
120,511.13x = 285,513.19 × 285,513.19 - Step 4: Simplify right side
120,511.13x = 81,517,780,236.41 - Step 5: Solve for x
x = 81,517,780,236.41/120,511.13 - Step 6: Final answer
x = 676,433.65
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Why These Related Problems?
These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.