Finding the Fourth Proportional to 271,744.23, 405,786.42 and 221,923.17
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Solution
The fourth proportional to 271,744.23, 405,786.42 and 221,923.17 is: 331,390.32
Step by Step Solution
- Step 1: Write the proportion equation
271,744.23 : 405,786.42 = 221,923.17 : x - Step 2: Convert to fraction form
271,744.23/405,786.42 = 221,923.17/x - Step 3: Cross multiply
271,744.23x = 405,786.42 × 221,923.17 - Step 4: Simplify right side
271,744.23x = 90,053,408,669.35 - Step 5: Solve for x
x = 90,053,408,669.35/271,744.23 - Step 6: Final answer
x = 331,390.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.