Finding the Fourth Proportional to 173.80, 239.40 and 157.99
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Solution
The fourth proportional to 173.80, 239.40 and 157.99 is: 217.62
Step by Step Solution
- Step 1: Write the proportion equation
173.80 : 239.40 = 157.99 : x - Step 2: Convert to fraction form
173.80/239.40 = 157.99/x - Step 3: Cross multiply
173.80x = 239.40 × 157.99 - Step 4: Simplify right side
173.80x = 37,822.81 - Step 5: Solve for x
x = 37,822.81/173.80 - Step 6: Final answer
x = 217.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.