Finding the Fourth Proportional to 262.74, 393.75 and 207.99
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Solution
The fourth proportional to 262.74, 393.75 and 207.99 is: 311.70
Step by Step Solution
- Step 1: Write the proportion equation
262.74 : 393.75 = 207.99 : x - Step 2: Convert to fraction form
262.74/393.75 = 207.99/x - Step 3: Cross multiply
262.74x = 393.75 × 207.99 - Step 4: Simplify right side
262.74x = 81,896.06 - Step 5: Solve for x
x = 81,896.06/262.74 - Step 6: Final answer
x = 311.70
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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.