Finding the Fourth Proportional to 281,134.60, 421,896.30 and 202,305.40
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Solution
The fourth proportional to 281,134.60, 421,896.30 and 202,305.40 is: 303,597.99
Step by Step Solution
- Step 1: Write the proportion equation
281,134.60 : 421,896.30 = 202,305.40 : x - Step 2: Convert to fraction form
281,134.60/421,896.30 = 202,305.40/x - Step 3: Cross multiply
281,134.60x = 421,896.30 × 202,305.40 - Step 4: Simplify right side
281,134.60x = 85,351,899,730.02 - Step 5: Solve for x
x = 85,351,899,730.02/281,134.60 - Step 6: Final answer
x = 303,597.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.