Finding the Fourth Proportional to 319,735.53, 479,515.80 and 120,040.56
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Solution
The fourth proportional to 319,735.53, 479,515.80 and 120,040.56 is: 180,027.99
Step by Step Solution
- Step 1: Write the proportion equation
319,735.53 : 479,515.80 = 120,040.56 : x - Step 2: Convert to fraction form
319,735.53/479,515.80 = 120,040.56/x - Step 3: Cross multiply
319,735.53x = 479,515.80 × 120,040.56 - Step 4: Simplify right side
319,735.53x = 57,561,345,160.85 - Step 5: Solve for x
x = 57,561,345,160.85/319,735.53 - Step 6: Final answer
x = 180,027.99
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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.