Finding the Fourth Proportional to 318,121.13, 477,169.24 and 107,759.07
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Solution
The fourth proportional to 318,121.13, 477,169.24 and 107,759.07 is: 161,634.38
Step by Step Solution
- Step 1: Write the proportion equation
318,121.13 : 477,169.24 = 107,759.07 : x - Step 2: Convert to fraction form
318,121.13/477,169.24 = 107,759.07/x - Step 3: Cross multiply
318,121.13x = 477,169.24 × 107,759.07 - Step 4: Simplify right side
318,121.13x = 51,419,310,610.37 - Step 5: Solve for x
x = 51,419,310,610.37/318,121.13 - Step 6: Final answer
x = 161,634.38
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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.