Finding the Fourth Proportional to 356,743.16, 492,286.70 and 203,751.28
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Solution
The fourth proportional to 356,743.16, 492,286.70 and 203,751.28 is: 281,165.99
Step by Step Solution
- Step 1: Write the proportion equation
356,743.16 : 492,286.70 = 203,751.28 : x - Step 2: Convert to fraction form
356,743.16/492,286.70 = 203,751.28/x - Step 3: Cross multiply
356,743.16x = 492,286.70 × 203,751.28 - Step 4: Simplify right side
356,743.16x = 100,304,045,251.98 - Step 5: Solve for x
x = 100,304,045,251.98/356,743.16 - Step 6: Final answer
x = 281,165.99
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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.