Finding the Fourth Proportional to 318,608.97, 477,914.80 and 129,073.02
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Solution
The fourth proportional to 318,608.97, 477,914.80 and 129,073.02 is: 193,610.07
Step by Step Solution
- Step 1: Write the proportion equation
318,608.97 : 477,914.80 = 129,073.02 : x - Step 2: Convert to fraction form
318,608.97/477,914.80 = 129,073.02/x - Step 3: Cross multiply
318,608.97x = 477,914.80 × 129,073.02 - Step 4: Simplify right side
318,608.97x = 61,685,906,538.70 - Step 5: Solve for x
x = 61,685,906,538.70/318,608.97 - Step 6: Final answer
x = 193,610.07
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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.