Finding the Fourth Proportional to 209,169.36, 288,655.56 and 113,676.12
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Solution
The fourth proportional to 209,169.36, 288,655.56 and 113,676.12 is: 156,874.05
Step by Step Solution
- Step 1: Write the proportion equation
209,169.36 : 288,655.56 = 113,676.12 : x - Step 2: Convert to fraction form
209,169.36/288,655.56 = 113,676.12/x - Step 3: Cross multiply
209,169.36x = 288,655.56 × 113,676.12 - Step 4: Simplify right side
209,169.36x = 32,813,244,077.23 - Step 5: Solve for x
x = 32,813,244,077.23/209,169.36 - Step 6: Final answer
x = 156,874.05
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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.