Finding the Fourth Proportional to 395,427.70, 545,687.52 and 214,135.48
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Solution
The fourth proportional to 395,427.70, 545,687.52 and 214,135.48 is: 295,505.50
Step by Step Solution
- Step 1: Write the proportion equation
395,427.70 : 545,687.52 = 214,135.48 : x - Step 2: Convert to fraction form
395,427.70/545,687.52 = 214,135.48/x - Step 3: Cross multiply
395,427.70x = 545,687.52 × 214,135.48 - Step 4: Simplify right side
395,427.70x = 116,851,059,025.21 - Step 5: Solve for x
x = 116,851,059,025.21/395,427.70 - Step 6: Final answer
x = 295,505.50
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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.