Finding the Fourth Proportional to 209,520.44, 288,937.20 and 140,765.24
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Solution
The fourth proportional to 209,520.44, 288,937.20 and 140,765.24 is: 194,120.99
Step by Step Solution
- Step 1: Write the proportion equation
209,520.44 : 288,937.20 = 140,765.24 : x - Step 2: Convert to fraction form
209,520.44/288,937.20 = 140,765.24/x - Step 3: Cross multiply
209,520.44x = 288,937.20 × 140,765.24 - Step 4: Simplify right side
209,520.44x = 40,672,314,302.93 - Step 5: Solve for x
x = 40,672,314,302.93/209,520.44 - Step 6: Final answer
x = 194,120.99
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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.