Finding the Fourth Proportional to 312,743.42, 431,585.66 and 169,503.42
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Solution
The fourth proportional to 312,743.42, 431,585.66 and 169,503.42 is: 233,914.58
Step by Step Solution
- Step 1: Write the proportion equation
312,743.42 : 431,585.66 = 169,503.42 : x - Step 2: Convert to fraction form
312,743.42/431,585.66 = 169,503.42/x - Step 3: Cross multiply
312,743.42x = 431,585.66 × 169,503.42 - Step 4: Simplify right side
312,743.42x = 73,155,245,392.96 - Step 5: Solve for x
x = 73,155,245,392.96/312,743.42 - Step 6: Final answer
x = 233,914.58
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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.