Finding the Fourth Proportional to 209,670.11, 289,348.20 and 119,028.75
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Solution
The fourth proportional to 209,670.11, 289,348.20 and 119,028.75 is: 164,261.63
Step by Step Solution
- Step 1: Write the proportion equation
209,670.11 : 289,348.20 = 119,028.75 : x - Step 2: Convert to fraction form
209,670.11/289,348.20 = 119,028.75/x - Step 3: Cross multiply
209,670.11x = 289,348.20 × 119,028.75 - Step 4: Simplify right side
209,670.11x = 34,440,754,560.75 - Step 5: Solve for x
x = 34,440,754,560.75/209,670.11 - Step 6: Final answer
x = 164,261.63
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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.