Finding the Fourth Proportional to 199.70, 276.21 and 176.70
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Solution
The fourth proportional to 199.70, 276.21 and 176.70 is: 244.40
Step by Step Solution
- Step 1: Write the proportion equation
199.70 : 276.21 = 176.70 : x - Step 2: Convert to fraction form
199.70/276.21 = 176.70/x - Step 3: Cross multiply
199.70x = 276.21 × 176.70 - Step 4: Simplify right side
199.70x = 48,806.31 - Step 5: Solve for x
x = 48,806.31/199.70 - Step 6: Final answer
x = 244.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.