Finding the Fourth Proportional to 394,936.68, 545,041.86 and 225,175.08
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Solution
The fourth proportional to 394,936.68, 545,041.86 and 225,175.08 is: 310,758.28
Step by Step Solution
- Step 1: Write the proportion equation
394,936.68 : 545,041.86 = 225,175.08 : x - Step 2: Convert to fraction form
394,936.68/545,041.86 = 225,175.08/x - Step 3: Cross multiply
394,936.68x = 545,041.86 × 225,175.08 - Step 4: Simplify right side
394,936.68x = 122,729,844,428.85 - Step 5: Solve for x
x = 122,729,844,428.85/394,936.68 - Step 6: Final answer
x = 310,758.28
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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.