Finding the Fourth Proportional to 215,557.20, 297,469.01 and 124,965.69
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Solution
The fourth proportional to 215,557.20, 297,469.01 and 124,965.69 is: 172,452.69
Step by Step Solution
- Step 1: Write the proportion equation
215,557.20 : 297,469.01 = 124,965.69 : x - Step 2: Convert to fraction form
215,557.20/297,469.01 = 124,965.69/x - Step 3: Cross multiply
215,557.20x = 297,469.01 × 124,965.69 - Step 4: Simplify right side
215,557.20x = 37,173,418,582.24 - Step 5: Solve for x
x = 37,173,418,582.24/215,557.20 - Step 6: Final answer
x = 172,452.69
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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.