Finding the Fourth Proportional to 131.80, 197.73 and 50.65
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Solution
The fourth proportional to 131.80, 197.73 and 50.65 is: 75.99
Step by Step Solution
- Step 1: Write the proportion equation
131.80 : 197.73 = 50.65 : x - Step 2: Convert to fraction form
131.80/197.73 = 50.65/x - Step 3: Cross multiply
131.80x = 197.73 × 50.65 - Step 4: Simplify right side
131.80x = 10,015.02 - Step 5: Solve for x
x = 10,015.02/131.80 - Step 6: Final answer
x = 75.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.