Finding the Third Proportional to 211,420.13 and 289,914.19
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Solution
The third proportional to 211,420.13 and 289,914.19 is: 397,550.78
Step by Step Solution
- Step 1: Write the proportion equation
211,420.13 : 289,914.19 = 289,914.19 : x - Step 2: Convert to fraction form
211,420.13/289,914.19 = 289,914.19/x - Step 3: Cross multiply
211,420.13x = 289,914.19 × 289,914.19 - Step 4: Simplify right side
211,420.13x = 84,050,236,113.79 - Step 5: Solve for x
x = 84,050,236,113.79/211,420.13 - Step 6: Final answer
x = 397,550.78
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.