Finding the Fourth Proportional to 100.29, 150.22 and 82.99
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Solution
The fourth proportional to 100.29, 150.22 and 82.99 is: 124.31
Step by Step Solution
- Step 1: Write the proportion equation
100.29 : 150.22 = 82.99 : x - Step 2: Convert to fraction form
100.29/150.22 = 82.99/x - Step 3: Cross multiply
100.29x = 150.22 × 82.99 - Step 4: Simplify right side
100.29x = 12,466.76 - Step 5: Solve for x
x = 12,466.76/100.29 - Step 6: Final answer
x = 124.31
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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.