Finding the Fourth Proportional to 400.92, 601.34 and 126.99
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Solution
The fourth proportional to 400.92, 601.34 and 126.99 is: 190.47
Step by Step Solution
- Step 1: Write the proportion equation
400.92 : 601.34 = 126.99 : x - Step 2: Convert to fraction form
400.92/601.34 = 126.99/x - Step 3: Cross multiply
400.92x = 601.34 × 126.99 - Step 4: Simplify right side
400.92x = 76,363.53 - Step 5: Solve for x
x = 76,363.53/400.92 - Step 6: Final answer
x = 190.47
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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.