Finding the Fourth Proportional to 213,812.71, 320,779.61 and 107,067.80
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Solution
The fourth proportional to 213,812.71, 320,779.61 and 107,067.80 is: 160,632.02
Step by Step Solution
- Step 1: Write the proportion equation
213,812.71 : 320,779.61 = 107,067.80 : x - Step 2: Convert to fraction form
213,812.71/320,779.61 = 107,067.80/x - Step 3: Cross multiply
213,812.71x = 320,779.61 × 107,067.80 - Step 4: Simplify right side
213,812.71x = 34,345,167,795.67 - Step 5: Solve for x
x = 34,345,167,795.67/213,812.71 - Step 6: Final answer
x = 160,632.02
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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.