Finding the Fourth Proportional to 218,715.21, 299,858.51 and 214,729.40
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Solution
The fourth proportional to 218,715.21, 299,858.51 and 214,729.40 is: 294,393.95
Step by Step Solution
- Step 1: Write the proportion equation
218,715.21 : 299,858.51 = 214,729.40 : x - Step 2: Convert to fraction form
218,715.21/299,858.51 = 214,729.40/x - Step 3: Cross multiply
218,715.21x = 299,858.51 × 214,729.40 - Step 4: Simplify right side
218,715.21x = 64,388,435,364.25 - Step 5: Solve for x
x = 64,388,435,364.25/218,715.21 - Step 6: Final answer
x = 294,393.95
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.