Finding the Fourth Proportional to 209,634.76, 289,250.94 and 124,735.24
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Solution
The fourth proportional to 209,634.76, 289,250.94 and 124,735.24 is: 172,107.84
Step by Step Solution
- Step 1: Write the proportion equation
209,634.76 : 289,250.94 = 124,735.24 : x - Step 2: Convert to fraction form
209,634.76/289,250.94 = 124,735.24/x - Step 3: Cross multiply
209,634.76x = 289,250.94 × 124,735.24 - Step 4: Simplify right side
209,634.76x = 36,079,785,421.13 - Step 5: Solve for x
x = 36,079,785,421.13/209,634.76 - Step 6: Final answer
x = 172,107.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.