Finding the Fourth Proportional to 282,339.21, 389,516.97 and 161,415.52
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Solution
The fourth proportional to 282,339.21, 389,516.97 and 161,415.52 is: 222,689.88
Step by Step Solution
- Step 1: Write the proportion equation
282,339.21 : 389,516.97 = 161,415.52 : x - Step 2: Convert to fraction form
282,339.21/389,516.97 = 161,415.52/x - Step 3: Cross multiply
282,339.21x = 389,516.97 × 161,415.52 - Step 4: Simplify right side
282,339.21x = 62,874,084,261.37 - Step 5: Solve for x
x = 62,874,084,261.37/282,339.21 - Step 6: Final answer
x = 222,689.88
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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.