Finding the Fourth Proportional to 322,634.24, 445,236.48 and 221,857.28
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Solution
The fourth proportional to 322,634.24, 445,236.48 and 221,857.28 is: 306,163.89
Step by Step Solution
- Step 1: Write the proportion equation
322,634.24 : 445,236.48 = 221,857.28 : x - Step 2: Convert to fraction form
322,634.24/445,236.48 = 221,857.28/x - Step 3: Cross multiply
322,634.24x = 445,236.48 × 221,857.28 - Step 4: Simplify right side
322,634.24x = 98,778,954,409.57 - Step 5: Solve for x
x = 98,778,954,409.57/322,634.24 - Step 6: Final answer
x = 306,163.89
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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.