Finding the Fourth Proportional to 132.71, 197.99 and 122.90
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Solution
The fourth proportional to 132.71, 197.99 and 122.90 is: 183.35
Step by Step Solution
- Step 1: Write the proportion equation
132.71 : 197.99 = 122.90 : x - Step 2: Convert to fraction form
132.71/197.99 = 122.90/x - Step 3: Cross multiply
132.71x = 197.99 × 122.90 - Step 4: Simplify right side
132.71x = 24,332.97 - Step 5: Solve for x
x = 24,332.97/132.71 - Step 6: Final answer
x = 183.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.