Finding the Fourth Proportional to 207,286.08, 310,826.88 and 87,321.12
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Solution
The fourth proportional to 207,286.08, 310,826.88 and 87,321.12 is: 130,938.61
Step by Step Solution
- Step 1: Write the proportion equation
207,286.08 : 310,826.88 = 87,321.12 : x - Step 2: Convert to fraction form
207,286.08/310,826.88 = 87,321.12/x - Step 3: Cross multiply
207,286.08x = 310,826.88 × 87,321.12 - Step 4: Simplify right side
207,286.08x = 27,141,751,287.71 - Step 5: Solve for x
x = 27,141,751,287.71/207,286.08 - Step 6: Final answer
x = 130,938.61
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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.