Finding the Fourth Proportional to 457,921.92, 631,922.84 and 253,939.94
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Solution
The fourth proportional to 457,921.92, 631,922.84 and 253,939.94 is: 350,431.90
Step by Step Solution
- Step 1: Write the proportion equation
457,921.92 : 631,922.84 = 253,939.94 : x - Step 2: Convert to fraction form
457,921.92/631,922.84 = 253,939.94/x - Step 3: Cross multiply
457,921.92x = 631,922.84 × 253,939.94 - Step 4: Simplify right side
457,921.92x = 160,470,448,074.23 - Step 5: Solve for x
x = 160,470,448,074.23/457,921.92 - Step 6: Final answer
x = 350,431.90
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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.