Finding the Fourth Proportional to 208,287.09, 312,366.02 and 75,150.09
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Solution
The fourth proportional to 208,287.09, 312,366.02 and 75,150.09 is: 112,701.82
Step by Step Solution
- Step 1: Write the proportion equation
208,287.09 : 312,366.02 = 75,150.09 : x - Step 2: Convert to fraction form
208,287.09/312,366.02 = 75,150.09/x - Step 3: Cross multiply
208,287.09x = 312,366.02 × 75,150.09 - Step 4: Simplify right side
208,287.09x = 23,474,334,140.19 - Step 5: Solve for x
x = 23,474,334,140.19/208,287.09 - Step 6: Final answer
x = 112,701.82
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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.