Finding the Fourth Proportional to 209,963.14, 289,753.49 and 118,084.19
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Solution
The fourth proportional to 209,963.14, 289,753.49 and 118,084.19 is: 162,958.63
Step by Step Solution
- Step 1: Write the proportion equation
209,963.14 : 289,753.49 = 118,084.19 : x - Step 2: Convert to fraction form
209,963.14/289,753.49 = 118,084.19/x - Step 3: Cross multiply
209,963.14x = 289,753.49 × 118,084.19 - Step 4: Simplify right side
209,963.14x = 34,215,305,012.77 - Step 5: Solve for x
x = 34,215,305,012.77/209,963.14 - Step 6: Final answer
x = 162,958.63
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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.