Finding the Fourth Proportional to 262.55, 392.87 and 164.99
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Solution
The fourth proportional to 262.55, 392.87 and 164.99 is: 246.88
Step by Step Solution
- Step 1: Write the proportion equation
262.55 : 392.87 = 164.99 : x - Step 2: Convert to fraction form
262.55/392.87 = 164.99/x - Step 3: Cross multiply
262.55x = 392.87 × 164.99 - Step 4: Simplify right side
262.55x = 64,819.62 - Step 5: Solve for x
x = 64,819.62/262.55 - Step 6: Final answer
x = 246.88
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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.