Finding the Fourth Proportional to 319,876.02, 479,881.68 and 120,198.13
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Solution
The fourth proportional to 319,876.02, 479,881.68 and 120,198.13 is: 180,322.62
Step by Step Solution
- Step 1: Write the proportion equation
319,876.02 : 479,881.68 = 120,198.13 : x - Step 2: Convert to fraction form
319,876.02/479,881.68 = 120,198.13/x - Step 3: Cross multiply
319,876.02x = 479,881.68 × 120,198.13 - Step 4: Simplify right side
319,876.02x = 57,680,880,557.26 - Step 5: Solve for x
x = 57,680,880,557.26/319,876.02 - Step 6: Final answer
x = 180,322.62
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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.