Finding the Fourth Proportional to 285,752.52, 394,336.62 and 158,428.08
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Solution
The fourth proportional to 285,752.52, 394,336.62 and 158,428.08 is: 218,629.72
Step by Step Solution
- Step 1: Write the proportion equation
285,752.52 : 394,336.62 = 158,428.08 : x - Step 2: Convert to fraction form
285,752.52/394,336.62 = 158,428.08/x - Step 3: Cross multiply
285,752.52x = 394,336.62 × 158,428.08 - Step 4: Simplify right side
285,752.52x = 62,473,993,580.29 - Step 5: Solve for x
x = 62,473,993,580.29/285,752.52 - Step 6: Final answer
x = 218,629.72
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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.