Finding the Fourth Proportional to 281,138.60, 421,902.30 and 202,309.40
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Solution
The fourth proportional to 281,138.60, 421,902.30 and 202,309.40 is: 303,603.99
Step by Step Solution
- Step 1: Write the proportion equation
281,138.60 : 421,902.30 = 202,309.40 : x - Step 2: Convert to fraction form
281,138.60/421,902.30 = 202,309.40/x - Step 3: Cross multiply
281,138.60x = 421,902.30 × 202,309.40 - Step 4: Simplify right side
281,138.60x = 85,354,801,171.62 - Step 5: Solve for x
x = 85,354,801,171.62/281,138.60 - Step 6: Final answer
x = 303,603.99
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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.