Finding the Fourth Proportional to 127.27, 175.53 and 109.99
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Solution
The fourth proportional to 127.27, 175.53 and 109.99 is: 151.70
Step by Step Solution
- Step 1: Write the proportion equation
127.27 : 175.53 = 109.99 : x - Step 2: Convert to fraction form
127.27/175.53 = 109.99/x - Step 3: Cross multiply
127.27x = 175.53 × 109.99 - Step 4: Simplify right side
127.27x = 19,306.54 - Step 5: Solve for x
x = 19,306.54/127.27 - Step 6: Final answer
x = 151.70
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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.