Finding the Fourth Proportional to 216,545.76, 324,874.62 and 66,782.70
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Solution
The fourth proportional to 216,545.76, 324,874.62 and 66,782.70 is: 100,191.31
Step by Step Solution
- Step 1: Write the proportion equation
216,545.76 : 324,874.62 = 66,782.70 : x - Step 2: Convert to fraction form
216,545.76/324,874.62 = 66,782.70/x - Step 3: Cross multiply
216,545.76x = 324,874.62 × 66,782.70 - Step 4: Simplify right side
216,545.76x = 21,696,004,285.07 - Step 5: Solve for x
x = 21,696,004,285.07/216,545.76 - Step 6: Final answer
x = 100,191.31
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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.