Finding the Fourth Proportional to 201,853.83, 278,544.92 and 121,284.75
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Solution
The fourth proportional to 201,853.83, 278,544.92 and 121,284.75 is: 167,364.92
Step by Step Solution
- Step 1: Write the proportion equation
201,853.83 : 278,544.92 = 121,284.75 : x - Step 2: Convert to fraction form
201,853.83/278,544.92 = 121,284.75/x - Step 3: Cross multiply
201,853.83x = 278,544.92 × 121,284.75 - Step 4: Simplify right side
201,853.83x = 33,783,250,379.55 - Step 5: Solve for x
x = 33,783,250,379.55/201,853.83 - Step 6: Final answer
x = 167,364.92
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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.