Finding the Fourth Proportional to 209,046.25, 288,485.35 and 113,552.99
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Solution
The fourth proportional to 209,046.25, 288,485.35 and 113,552.99 is: 156,703.95
Step by Step Solution
- Step 1: Write the proportion equation
209,046.25 : 288,485.35 = 113,552.99 : x - Step 2: Convert to fraction form
209,046.25/288,485.35 = 113,552.99/x - Step 3: Cross multiply
209,046.25x = 288,485.35 × 113,552.99 - Step 4: Simplify right side
209,046.25x = 32,758,373,419.21 - Step 5: Solve for x
x = 32,758,373,419.21/209,046.25 - Step 6: Final answer
x = 156,703.95
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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.