Finding the Fourth Proportional to 216,728.26, 325,114.26 and 81,758.46
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Solution
The fourth proportional to 216,728.26, 325,114.26 and 81,758.46 is: 122,645.95
Step by Step Solution
- Step 1: Write the proportion equation
216,728.26 : 325,114.26 = 81,758.46 : x - Step 2: Convert to fraction form
216,728.26/325,114.26 = 81,758.46/x - Step 3: Cross multiply
216,728.26x = 325,114.26 × 81,758.46 - Step 4: Simplify right side
216,728.26x = 26,580,842,134.22 - Step 5: Solve for x
x = 26,580,842,134.22/216,728.26 - Step 6: Final answer
x = 122,645.95
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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.