Finding the Fourth Proportional to 209,908.19, 289,670.36 and 114,415.26
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Solution
The fourth proportional to 209,908.19, 289,670.36 and 114,415.26 is: 157,891.46
Step by Step Solution
- Step 1: Write the proportion equation
209,908.19 : 289,670.36 = 114,415.26 : x - Step 2: Convert to fraction form
209,908.19/289,670.36 = 114,415.26/x - Step 3: Cross multiply
209,908.19x = 289,670.36 × 114,415.26 - Step 4: Simplify right side
209,908.19x = 33,142,708,981.62 - Step 5: Solve for x
x = 33,142,708,981.62/209,908.19 - Step 6: Final answer
x = 157,891.46
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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.