Finding the Fourth Proportional to 82.86, 124.30 and 22.00
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Solution
The fourth proportional to 82.86, 124.30 and 22.00 is: 32.99
Step by Step Solution
- Step 1: Write the proportion equation
82.86 : 124.30 = 22.00 : x - Step 2: Convert to fraction form
82.86/124.30 = 22.00/x - Step 3: Cross multiply
82.86x = 124.30 × 22.00 - Step 4: Simplify right side
82.86x = 2,734.08 - Step 5: Solve for x
x = 2,734.08/82.86 - Step 6: Final answer
x = 32.99
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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.