Finding the Fourth Proportional to 207,817.28, 286,770.60 and 117,195.68
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Solution
The fourth proportional to 207,817.28, 286,770.60 and 117,195.68 is: 161,720.31
Step by Step Solution
- Step 1: Write the proportion equation
207,817.28 : 286,770.60 = 117,195.68 : x - Step 2: Convert to fraction form
207,817.28/286,770.60 = 117,195.68/x - Step 3: Cross multiply
207,817.28x = 286,770.60 × 117,195.68 - Step 4: Simplify right side
207,817.28x = 33,608,275,471.01 - Step 5: Solve for x
x = 33,608,275,471.01/207,817.28 - Step 6: Final answer
x = 161,720.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.