Finding the Fourth Proportional to 209,218.76, 313,830.33 and 82,889.75
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Solution
The fourth proportional to 209,218.76, 313,830.33 and 82,889.75 is: 124,335.49
Step by Step Solution
- Step 1: Write the proportion equation
209,218.76 : 313,830.33 = 82,889.75 : x - Step 2: Convert to fraction form
209,218.76/313,830.33 = 82,889.75/x - Step 3: Cross multiply
209,218.76x = 313,830.33 × 82,889.75 - Step 4: Simplify right side
209,218.76x = 26,013,317,596.12 - Step 5: Solve for x
x = 26,013,317,596.12/209,218.76 - Step 6: Final answer
x = 124,335.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.