Finding the Fourth Proportional to 211,163.06, 291,409.73 and 120,517.21
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Solution
The fourth proportional to 211,163.06, 291,409.73 and 120,517.21 is: 166,316.43
Step by Step Solution
- Step 1: Write the proportion equation
211,163.06 : 291,409.73 = 120,517.21 : x - Step 2: Convert to fraction form
211,163.06/291,409.73 = 120,517.21/x - Step 3: Cross multiply
211,163.06x = 291,409.73 × 120,517.21 - Step 4: Simplify right side
211,163.06x = 35,119,887,199.22 - Step 5: Solve for x
x = 35,119,887,199.22/211,163.06 - Step 6: Final answer
x = 166,316.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.