Finding the Fourth Proportional to 209,806.80, 289,534.68 and 124,927.44
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Solution
The fourth proportional to 209,806.80, 289,534.68 and 124,927.44 is: 172,400.64
Step by Step Solution
- Step 1: Write the proportion equation
209,806.80 : 289,534.68 = 124,927.44 : x - Step 2: Convert to fraction form
209,806.80/289,534.68 = 124,927.44/x - Step 3: Cross multiply
209,806.80x = 289,534.68 × 124,927.44 - Step 4: Simplify right side
209,806.80x = 36,170,826,363.62 - Step 5: Solve for x
x = 36,170,826,363.62/209,806.80 - Step 6: Final answer
x = 172,400.64
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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.