Finding the Fourth Proportional to 319,876.14, 479,881.87 and 120,198.26
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Solution
The fourth proportional to 319,876.14, 479,881.87 and 120,198.26 is: 180,322.81
Step by Step Solution
- Step 1: Write the proportion equation
319,876.14 : 479,881.87 = 120,198.26 : x - Step 2: Convert to fraction form
319,876.14/479,881.87 = 120,198.26/x - Step 3: Cross multiply
319,876.14x = 479,881.87 × 120,198.26 - Step 4: Simplify right side
319,876.14x = 57,680,965,779.55 - Step 5: Solve for x
x = 57,680,965,779.55/319,876.14 - Step 6: Final answer
x = 180,322.81
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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.