Finding the Fourth Proportional to 194,469.20, 291,120.60 and 115,542.80
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Solution
The fourth proportional to 194,469.20, 291,120.60 and 115,542.80 is: 172,967.69
Step by Step Solution
- Step 1: Write the proportion equation
194,469.20 : 291,120.60 = 115,542.80 : x - Step 2: Convert to fraction form
194,469.20/291,120.60 = 115,542.80/x - Step 3: Cross multiply
194,469.20x = 291,120.60 × 115,542.80 - Step 4: Simplify right side
194,469.20x = 33,636,889,261.68 - Step 5: Solve for x
x = 33,636,889,261.68/194,469.20 - Step 6: Final answer
x = 172,967.69
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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.