Finding the Fourth Proportional to 213,456.96, 320,163.98 and 55,685.70
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Solution
The fourth proportional to 213,456.96, 320,163.98 and 55,685.70 is: 83,522.95
Step by Step Solution
- Step 1: Write the proportion equation
213,456.96 : 320,163.98 = 55,685.70 : x - Step 2: Convert to fraction form
213,456.96/320,163.98 = 55,685.70/x - Step 3: Cross multiply
213,456.96x = 320,163.98 × 55,685.70 - Step 4: Simplify right side
213,456.96x = 17,828,555,062.66 - Step 5: Solve for x
x = 17,828,555,062.66/213,456.96 - Step 6: Final answer
x = 83,522.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.