Finding the Fourth Proportional to 201,713.11, 278,280.64 and 120,025.09
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Solution
The fourth proportional to 201,713.11, 278,280.64 and 120,025.09 is: 165,584.97
Step by Step Solution
- Step 1: Write the proportion equation
201,713.11 : 278,280.64 = 120,025.09 : x - Step 2: Convert to fraction form
201,713.11/278,280.64 = 120,025.09/x - Step 3: Cross multiply
201,713.11x = 278,280.64 × 120,025.09 - Step 4: Simplify right side
201,713.11x = 33,400,659,021.57 - Step 5: Solve for x
x = 33,400,659,021.57/201,713.11 - Step 6: Final answer
x = 165,584.97
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1.5x scale
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.