Finding the Fourth Proportional to 313,039.49, 431,991.43 and 169,797.47
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Solution
The fourth proportional to 313,039.49, 431,991.43 and 169,797.47 is: 234,318.84
Step by Step Solution
- Step 1: Write the proportion equation
313,039.49 : 431,991.43 = 169,797.47 : x - Step 2: Convert to fraction form
313,039.49/431,991.43 = 169,797.47/x - Step 3: Cross multiply
313,039.49x = 431,991.43 × 169,797.47 - Step 4: Simplify right side
313,039.49x = 73,351,049,291.23 - Step 5: Solve for x
x = 73,351,049,291.23/313,039.49 - Step 6: Final answer
x = 234,318.84
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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.