Finding the Fourth Proportional to 285,961.56, 394,608.36 and 158,636.84
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Solution
The fourth proportional to 285,961.56, 394,608.36 and 158,636.84 is: 218,908.52
Step by Step Solution
- Step 1: Write the proportion equation
285,961.56 : 394,608.36 = 158,636.84 : x - Step 2: Convert to fraction form
285,961.56/394,608.36 = 158,636.84/x - Step 3: Cross multiply
285,961.56x = 394,608.36 × 158,636.84 - Step 4: Simplify right side
285,961.56x = 62,599,423,267.98 - Step 5: Solve for x
x = 62,599,423,267.98/285,961.56 - Step 6: Final answer
x = 218,908.52
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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.