Finding the Fourth Proportional to 319.41, 479.06 and 113.99
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Solution
The fourth proportional to 319.41, 479.06 and 113.99 is: 170.97
Step by Step Solution
- Step 1: Write the proportion equation
319.41 : 479.06 = 113.99 : x - Step 2: Convert to fraction form
319.41/479.06 = 113.99/x - Step 3: Cross multiply
319.41x = 479.06 × 113.99 - Step 4: Simplify right side
319.41x = 54,608.05 - Step 5: Solve for x
x = 54,608.05/319.41 - Step 6: Final answer
x = 170.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.