Finding the Fourth Proportional to 321,175.42, 481,725.60 and 129,042.07
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Solution
The fourth proportional to 321,175.42, 481,725.60 and 129,042.07 is: 193,548.02
Step by Step Solution
- Step 1: Write the proportion equation
321,175.42 : 481,725.60 = 129,042.07 : x - Step 2: Convert to fraction form
321,175.42/481,725.60 = 129,042.07/x - Step 3: Cross multiply
321,175.42x = 481,725.60 × 129,042.07 - Step 4: Simplify right side
321,175.42x = 62,162,867,633.63 - Step 5: Solve for x
x = 62,162,867,633.63/321,175.42 - Step 6: Final answer
x = 193,548.02
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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.