Finding the Fourth Proportional to 319,922.53, 479,514.74 and 120,115.48
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Solution
The fourth proportional to 319,922.53, 479,514.74 and 120,115.48 is: 180,034.66
Step by Step Solution
- Step 1: Write the proportion equation
319,922.53 : 479,514.74 = 120,115.48 : x - Step 2: Convert to fraction form
319,922.53/479,514.74 = 120,115.48/x - Step 3: Cross multiply
319,922.53x = 479,514.74 × 120,115.48 - Step 4: Simplify right side
319,922.53x = 57,597,143,162.18 - Step 5: Solve for x
x = 57,597,143,162.18/319,922.53 - Step 6: Final answer
x = 180,034.66
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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.