Finding the Fourth Proportional to 188,917.92, 260,742.42 and 108,398.07
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Solution
The fourth proportional to 188,917.92, 260,742.42 and 108,398.07 is: 149,609.82
Step by Step Solution
- Step 1: Write the proportion equation
188,917.92 : 260,742.42 = 108,398.07 : x - Step 2: Convert to fraction form
188,917.92/260,742.42 = 108,398.07/x - Step 3: Cross multiply
188,917.92x = 260,742.42 × 108,398.07 - Step 4: Simplify right side
188,917.92x = 28,263,975,095.13 - Step 5: Solve for x
x = 28,263,975,095.13/188,917.92 - Step 6: Final answer
x = 149,609.82
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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.