Finding the Third Proportional to 121,515.19 and 287,112.09
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Solution
The third proportional to 121,515.19 and 287,112.09 is: 678,379.02
Step by Step Solution
- Step 1: Write the proportion equation
121,515.19 : 287,112.09 = 287,112.09 : x - Step 2: Convert to fraction form
121,515.19/287,112.09 = 287,112.09/x - Step 3: Cross multiply
121,515.19x = 287,112.09 × 287,112.09 - Step 4: Simplify right side
121,515.19x = 82,433,354,377.51 - Step 5: Solve for x
x = 82,433,354,377.51/121,515.19 - Step 6: Final answer
x = 678,379.02
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Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.