Finding the Fourth Proportional to 216,759.18, 324,718.11 and 159,729.60
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Solution
The fourth proportional to 216,759.18, 324,718.11 and 159,729.60 is: 239,284.42
Step by Step Solution
- Step 1: Write the proportion equation
216,759.18 : 324,718.11 = 159,729.60 : x - Step 2: Convert to fraction form
216,759.18/324,718.11 = 159,729.60/x - Step 3: Cross multiply
216,759.18x = 324,718.11 × 159,729.60 - Step 4: Simplify right side
216,759.18x = 51,867,093,823.06 - Step 5: Solve for x
x = 51,867,093,823.06/216,759.18 - Step 6: Final answer
x = 239,284.42
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1.5x scale
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.