Finding the Fourth Proportional to 114.27, 171.36 and 42.09
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Solution
The fourth proportional to 114.27, 171.36 and 42.09 is: 63.12
Step by Step Solution
- Step 1: Write the proportion equation
114.27 : 171.36 = 42.09 : x - Step 2: Convert to fraction form
114.27/171.36 = 42.09/x - Step 3: Cross multiply
114.27x = 171.36 × 42.09 - Step 4: Simplify right side
114.27x = 7,212.54 - Step 5: Solve for x
x = 7,212.54/114.27 - Step 6: Final answer
x = 63.12
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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.