Finding the Fourth Proportional to 207,816.20, 286,785.44 and 112,322.68
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Solution
The fourth proportional to 207,816.20, 286,785.44 and 112,322.68 is: 155,004.80
Step by Step Solution
- Step 1: Write the proportion equation
207,816.20 : 286,785.44 = 112,322.68 : x - Step 2: Convert to fraction form
207,816.20/286,785.44 = 112,322.68/x - Step 3: Cross multiply
207,816.20x = 286,785.44 × 112,322.68 - Step 4: Simplify right side
207,816.20x = 32,212,509,205.78 - Step 5: Solve for x
x = 32,212,509,205.78/207,816.20 - Step 6: Final answer
x = 155,004.80
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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.