Finding the Fourth Proportional to 213,898.98, 321,163.86 and 119,313.96
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Solution
The fourth proportional to 213,898.98, 321,163.86 and 119,313.96 is: 179,146.87
Step by Step Solution
- Step 1: Write the proportion equation
213,898.98 : 321,163.86 = 119,313.96 : x - Step 2: Convert to fraction form
213,898.98/321,163.86 = 119,313.96/x - Step 3: Cross multiply
213,898.98x = 321,163.86 × 119,313.96 - Step 4: Simplify right side
213,898.98x = 38,319,331,945.49 - Step 5: Solve for x
x = 38,319,331,945.49/213,898.98 - Step 6: Final answer
x = 179,146.87
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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.