Finding the Fourth Proportional to 258,561,160.80, 387,841,741.20 and 226,276,120.05
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Solution
The fourth proportional to 258,561,160.80, 387,841,741.20 and 226,276,120.05 is: 339,414,180.08
Step by Step Solution
- Step 1: Write the proportion equation
258,561,160.80 : 387,841,741.20 = 226,276,120.05 : x - Step 2: Convert to fraction form
258,561,160.80/387,841,741.20 = 226,276,120.05/x - Step 3: Cross multiply
258,561,160.80x = 387,841,741.20 × 226,276,120.05 - Step 4: Simplify right side
258,561,160.80x = 87,759,324,392,172,240 - Step 5: Solve for x
x = 87,759,324,392,172,240/258,561,160.80 - Step 6: Final answer
x = 339,414,180.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.