Finding the Fourth Proportional to 195.13, 269.28 and 107.81
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Solution
The fourth proportional to 195.13, 269.28 and 107.81 is: 148.77
Step by Step Solution
- Step 1: Write the proportion equation
195.13 : 269.28 = 107.81 : x - Step 2: Convert to fraction form
195.13/269.28 = 107.81/x - Step 3: Cross multiply
195.13x = 269.28 × 107.81 - Step 4: Simplify right side
195.13x = 29,029.19 - Step 5: Solve for x
x = 29,029.19/195.13 - Step 6: Final answer
x = 148.77
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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.