Finding the Fourth Proportional to 262.21, 392.98 and 125.18
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Solution
The fourth proportional to 262.21, 392.98 and 125.18 is: 187.61
Step by Step Solution
- Step 1: Write the proportion equation
262.21 : 392.98 = 125.18 : x - Step 2: Convert to fraction form
262.21/392.98 = 125.18/x - Step 3: Cross multiply
262.21x = 392.98 × 125.18 - Step 4: Simplify right side
262.21x = 49,193.97 - Step 5: Solve for x
x = 49,193.97/262.21 - Step 6: Final answer
x = 187.61
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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.