Finding the Fourth Proportional to 195.18, 292.87 and 79.65
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Solution
The fourth proportional to 195.18, 292.87 and 79.65 is: 119.52
Step by Step Solution
- Step 1: Write the proportion equation
195.18 : 292.87 = 79.65 : x - Step 2: Convert to fraction form
195.18/292.87 = 79.65/x - Step 3: Cross multiply
195.18x = 292.87 × 79.65 - Step 4: Simplify right side
195.18x = 23,327.20 - Step 5: Solve for x
x = 23,327.20/195.18 - Step 6: Final answer
x = 119.52
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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.