Finding the Fourth Proportional to 278,481.96, 417,365.46 and 126,568.08
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Solution
The fourth proportional to 278,481.96, 417,365.46 and 126,568.08 is: 189,689.65
Step by Step Solution
- Step 1: Write the proportion equation
278,481.96 : 417,365.46 = 126,568.08 : x - Step 2: Convert to fraction form
278,481.96/417,365.46 = 126,568.08/x - Step 3: Cross multiply
278,481.96x = 417,365.46 × 126,568.08 - Step 4: Simplify right side
278,481.96x = 52,825,144,930.52 - Step 5: Solve for x
x = 52,825,144,930.52/278,481.96 - Step 6: Final answer
x = 189,689.65
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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.