Finding the Fourth Proportional to 395,463.76, 545,736.90 and 214,171.49
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Solution
The fourth proportional to 395,463.76, 545,736.90 and 214,171.49 is: 295,554.99
Step by Step Solution
- Step 1: Write the proportion equation
395,463.76 : 545,736.90 = 214,171.49 : x - Step 2: Convert to fraction form
395,463.76/545,736.90 = 214,171.49/x - Step 3: Cross multiply
395,463.76x = 545,736.90 × 214,171.49 - Step 4: Simplify right side
395,463.76x = 116,881,285,020.98 - Step 5: Solve for x
x = 116,881,285,020.98/395,463.76 - Step 6: Final answer
x = 295,554.99
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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.