Finding the Fourth Proportional to 200,815.68, 277,093.92 and 115,917.12
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Solution
The fourth proportional to 200,815.68, 277,093.92 and 115,917.12 is: 159,947.32
Step by Step Solution
- Step 1: Write the proportion equation
200,815.68 : 277,093.92 = 115,917.12 : x - Step 2: Convert to fraction form
200,815.68/277,093.92 = 115,917.12/x - Step 3: Cross multiply
200,815.68x = 277,093.92 × 115,917.12 - Step 4: Simplify right side
200,815.68x = 32,119,929,175.91 - Step 5: Solve for x
x = 32,119,929,175.91/200,815.68 - Step 6: Final answer
x = 159,947.32
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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.