Finding the Fourth Proportional to 209,405.84, 289,087.08 and 161,551.76
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Solution
The fourth proportional to 209,405.84, 289,087.08 and 161,551.76 is: 223,023.99
Step by Step Solution
- Step 1: Write the proportion equation
209,405.84 : 289,087.08 = 161,551.76 : x - Step 2: Convert to fraction form
209,405.84/289,087.08 = 161,551.76/x - Step 3: Cross multiply
209,405.84x = 289,087.08 × 161,551.76 - Step 4: Simplify right side
209,405.84x = 46,702,526,567.26 - Step 5: Solve for x
x = 46,702,526,567.26/209,405.84 - Step 6: Final answer
x = 223,023.99
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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.