Finding the Fourth Proportional to 262.24, 392.74 and 207.96
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Solution
The fourth proportional to 262.24, 392.74 and 207.96 is: 311.45
Step by Step Solution
- Step 1: Write the proportion equation
262.24 : 392.74 = 207.96 : x - Step 2: Convert to fraction form
262.24/392.74 = 207.96/x - Step 3: Cross multiply
262.24x = 392.74 × 207.96 - Step 4: Simplify right side
262.24x = 81,674.21 - Step 5: Solve for x
x = 81,674.21/262.24 - Step 6: Final answer
x = 311.45
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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.