Finding the Fourth Proportional to 173.90, 239.99 and 107.53
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Solution
The fourth proportional to 173.90, 239.99 and 107.53 is: 148.39
Step by Step Solution
- Step 1: Write the proportion equation
173.90 : 239.99 = 107.53 : x - Step 2: Convert to fraction form
173.90/239.99 = 107.53/x - Step 3: Cross multiply
173.90x = 239.99 × 107.53 - Step 4: Simplify right side
173.90x = 25,804.99 - Step 5: Solve for x
x = 25,804.99/173.90 - Step 6: Final answer
x = 148.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.