Finding the Fourth Proportional to 216,615.08, 324,953.75 and 66,868.19
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Solution
The fourth proportional to 216,615.08, 324,953.75 and 66,868.19 is: 100,311.89
Step by Step Solution
- Step 1: Write the proportion equation
216,615.08 : 324,953.75 = 66,868.19 : x - Step 2: Convert to fraction form
216,615.08/324,953.75 = 66,868.19/x - Step 3: Cross multiply
216,615.08x = 324,953.75 × 66,868.19 - Step 4: Simplify right side
216,615.08x = 21,729,069,096.21 - Step 5: Solve for x
x = 21,729,069,096.21/216,615.08 - Step 6: Final answer
x = 100,311.89
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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.