Finding the Fourth Proportional to 312,550.07, 431,318.68 and 169,310.68
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Solution
The fourth proportional to 312,550.07, 431,318.68 and 169,310.68 is: 233,648.51
Step by Step Solution
- Step 1: Write the proportion equation
312,550.07 : 431,318.68 = 169,310.68 : x - Step 2: Convert to fraction form
312,550.07/431,318.68 = 169,310.68/x - Step 3: Cross multiply
312,550.07x = 431,318.68 × 169,310.68 - Step 4: Simplify right side
312,550.07x = 73,026,857,505.93 - Step 5: Solve for x
x = 73,026,857,505.93/312,550.07 - Step 6: Final answer
x = 233,648.51
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1.5x scale
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.