Finding the Fourth Proportional to 391.97, 588.02 and 131.99
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Solution
The fourth proportional to 391.97, 588.02 and 131.99 is: 198.01
Step by Step Solution
- Step 1: Write the proportion equation
391.97 : 588.02 = 131.99 : x - Step 2: Convert to fraction form
391.97/588.02 = 131.99/x - Step 3: Cross multiply
391.97x = 588.02 × 131.99 - Step 4: Simplify right side
391.97x = 77,614.23 - Step 5: Solve for x
x = 77,614.23/391.97 - Step 6: Final answer
x = 198.01
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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.