Finding the Fourth Proportional to 209,221.14, 288,725.37 and 113,727.84
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Solution
The fourth proportional to 209,221.14, 288,725.37 and 113,727.84 is: 156,944.53
Step by Step Solution
- Step 1: Write the proportion equation
209,221.14 : 288,725.37 = 113,727.84 : x - Step 2: Convert to fraction form
209,221.14/288,725.37 = 113,727.84/x - Step 3: Cross multiply
209,221.14x = 288,725.37 × 113,727.84 - Step 4: Simplify right side
209,221.14x = 32,836,112,683.30 - Step 5: Solve for x
x = 32,836,112,683.30/209,221.14 - Step 6: Final answer
x = 156,944.53
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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.