Finding the Fourth Proportional to 213,789.41, 320,589.34 and 113,930.99
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Solution
The fourth proportional to 213,789.41, 320,589.34 and 113,930.99 is: 170,845.98
Step by Step Solution
- Step 1: Write the proportion equation
213,789.41 : 320,589.34 = 113,930.99 : x - Step 2: Convert to fraction form
213,789.41/320,589.34 = 113,930.99/x - Step 3: Cross multiply
213,789.41x = 320,589.34 × 113,930.99 - Step 4: Simplify right side
213,789.41x = 36,525,060,889.65 - Step 5: Solve for x
x = 36,525,060,889.65/213,789.41 - Step 6: Final answer
x = 170,845.98
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1.5x scale
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.