Finding the Fourth Proportional to 312,804.99, 431,663.99 and 169,561.35
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Solution
The fourth proportional to 312,804.99, 431,663.99 and 169,561.35 is: 233,990.92
Step by Step Solution
- Step 1: Write the proportion equation
312,804.99 : 431,663.99 = 169,561.35 : x - Step 2: Convert to fraction form
312,804.99/431,663.99 = 169,561.35/x - Step 3: Cross multiply
312,804.99x = 431,663.99 × 169,561.35 - Step 4: Simplify right side
312,804.99x = 73,193,528,042.98 - Step 5: Solve for x
x = 73,193,528,042.98/312,804.99 - Step 6: Final answer
x = 233,990.92
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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.