Finding the Fourth Proportional to 394,115.52, 591,172.99 and 127,876.03
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Solution
The fourth proportional to 394,115.52, 591,172.99 and 127,876.03 is: 191,813.95
Step by Step Solution
- Step 1: Write the proportion equation
394,115.52 : 591,172.99 = 127,876.03 : x - Step 2: Convert to fraction form
394,115.52/591,172.99 = 127,876.03/x - Step 3: Cross multiply
394,115.52x = 591,172.99 × 127,876.03 - Step 4: Simplify right side
394,115.52x = 75,596,855,004.43 - Step 5: Solve for x
x = 75,596,855,004.43/394,115.52 - Step 6: Final answer
x = 191,813.95
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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.