Finding the Fourth Proportional to 195.14, 292.17 and 129.99
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Solution
The fourth proportional to 195.14, 292.17 and 129.99 is: 194.63
Step by Step Solution
- Step 1: Write the proportion equation
195.14 : 292.17 = 129.99 : x - Step 2: Convert to fraction form
195.14/292.17 = 129.99/x - Step 3: Cross multiply
195.14x = 292.17 × 129.99 - Step 4: Simplify right side
195.14x = 37,979.18 - Step 5: Solve for x
x = 37,979.18/195.14 - Step 6: Final answer
x = 194.63
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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.