Finding the Fourth Proportional to 199.79, 299.73 and 76.44
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Solution
The fourth proportional to 199.79, 299.73 and 76.44 is: 114.68
Step by Step Solution
- Step 1: Write the proportion equation
199.79 : 299.73 = 76.44 : x - Step 2: Convert to fraction form
199.79/299.73 = 76.44/x - Step 3: Cross multiply
199.79x = 299.73 × 76.44 - Step 4: Simplify right side
199.79x = 22,911.36 - Step 5: Solve for x
x = 22,911.36/199.79 - Step 6: Final answer
x = 114.68
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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.