Finding the Fourth Proportional to 251,902.53, 378,378.68 and 212,536.53
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Solution
The fourth proportional to 251,902.53, 378,378.68 and 212,536.53 is: 319,247.65
Step by Step Solution
- Step 1: Write the proportion equation
251,902.53 : 378,378.68 = 212,536.53 : x - Step 2: Convert to fraction form
251,902.53/378,378.68 = 212,536.53/x - Step 3: Cross multiply
251,902.53x = 378,378.68 × 212,536.53 - Step 4: Simplify right side
251,902.53x = 80,419,290,610.50 - Step 5: Solve for x
x = 80,419,290,610.50/251,902.53 - Step 6: Final answer
x = 319,247.65
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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.