Finding the Fourth Proportional to 396.37, 546.99 and 216.92
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Solution
The fourth proportional to 396.37, 546.99 and 216.92 is: 299.35
Step by Step Solution
- Step 1: Write the proportion equation
396.37 : 546.99 = 216.92 : x - Step 2: Convert to fraction form
396.37/546.99 = 216.92/x - Step 3: Cross multiply
396.37x = 546.99 × 216.92 - Step 4: Simplify right side
396.37x = 118,655.25 - Step 5: Solve for x
x = 118,655.25/396.37 - Step 6: Final answer
x = 299.35
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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.