Finding the Fourth Proportional to 321,177.35, 481,728.48 and 129,043.99
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Solution
The fourth proportional to 321,177.35, 481,728.48 and 129,043.99 is: 193,550.90
Step by Step Solution
- Step 1: Write the proportion equation
321,177.35 : 481,728.48 = 129,043.99 : x - Step 2: Convert to fraction form
321,177.35/481,728.48 = 129,043.99/x - Step 3: Cross multiply
321,177.35x = 481,728.48 × 129,043.99 - Step 4: Simplify right side
321,177.35x = 62,164,163,951.51 - Step 5: Solve for x
x = 62,164,163,951.51/321,177.35 - Step 6: Final answer
x = 193,550.90
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1.5x scale
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.