Finding the Fourth Proportional to 396.30, 547.08 and 246.93
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Solution
The fourth proportional to 396.30, 547.08 and 246.93 is: 340.88
Step by Step Solution
- Step 1: Write the proportion equation
396.30 : 547.08 = 246.93 : x - Step 2: Convert to fraction form
396.30/547.08 = 246.93/x - Step 3: Cross multiply
396.30x = 547.08 × 246.93 - Step 4: Simplify right side
396.30x = 135,090.46 - Step 5: Solve for x
x = 135,090.46/396.30 - Step 6: Final answer
x = 340.88
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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.