Finding the Fourth Proportional to 199.92, 276 and 144.56
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Solution
The fourth proportional to 199.92, 276 and 144.56 is: 199.57
Step by Step Solution
- Step 1: Write the proportion equation
199.92 : 276 = 144.56 : x - Step 2: Convert to fraction form
199.92/276 = 144.56/x - Step 3: Cross multiply
199.92x = 276 × 144.56 - Step 4: Simplify right side
199.92x = 39,898.56 - Step 5: Solve for x
x = 39,898.56/199.92 - Step 6: Final answer
x = 199.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.