Finding the Fourth Proportional to 250,021.13, 345,029.18 and 136,843.88
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Solution
The fourth proportional to 250,021.13, 345,029.18 and 136,843.88 is: 188,844.56
Step by Step Solution
- Step 1: Write the proportion equation
250,021.13 : 345,029.18 = 136,843.88 : x - Step 2: Convert to fraction form
250,021.13/345,029.18 = 136,843.88/x - Step 3: Cross multiply
250,021.13x = 345,029.18 × 136,843.88 - Step 4: Simplify right side
250,021.13x = 47,215,129,295.05 - Step 5: Solve for x
x = 47,215,129,295.05/250,021.13 - Step 6: Final answer
x = 188,844.56
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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.