Finding the Fourth Proportional to 209,193.02, 288,687.20 and 113,699.49
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Solution
The fourth proportional to 209,193.02, 288,687.20 and 113,699.49 is: 156,905.75
Step by Step Solution
- Step 1: Write the proportion equation
209,193.02 : 288,687.20 = 113,699.49 : x - Step 2: Convert to fraction form
209,193.02/288,687.20 = 113,699.49/x - Step 3: Cross multiply
209,193.02x = 288,687.20 × 113,699.49 - Step 4: Simplify right side
209,193.02x = 32,823,587,409.53 - Step 5: Solve for x
x = 32,823,587,409.53/209,193.02 - Step 6: Final answer
x = 156,905.75
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1.5x scale
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.