Finding the Fourth Proportional to 285,803.81, 394,380.84 and 164,984.03
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Solution
The fourth proportional to 285,803.81, 394,380.84 and 164,984.03 is: 227,661.55
Step by Step Solution
- Step 1: Write the proportion equation
285,803.81 : 394,380.84 = 164,984.03 : x - Step 2: Convert to fraction form
285,803.81/394,380.84 = 164,984.03/x - Step 3: Cross multiply
285,803.81x = 394,380.84 × 164,984.03 - Step 4: Simplify right side
285,803.81x = 65,066,538,366.08 - Step 5: Solve for x
x = 65,066,538,366.08/285,803.81 - Step 6: Final answer
x = 227,661.55
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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.