Finding the Fourth Proportional to 331,653.14, 457,755.18 and 210,770.84
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Solution
The fourth proportional to 331,653.14, 457,755.18 and 210,770.84 is: 290,910.69
Step by Step Solution
- Step 1: Write the proportion equation
331,653.14 : 457,755.18 = 210,770.84 : x - Step 2: Convert to fraction form
331,653.14/457,755.18 = 210,770.84/x - Step 3: Cross multiply
331,653.14x = 457,755.18 × 210,770.84 - Step 4: Simplify right side
331,653.14x = 96,481,443,802.95 - Step 5: Solve for x
x = 96,481,443,802.95/331,653.14 - Step 6: Final answer
x = 290,910.69
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1.5x scale
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.