Finding the Fourth Proportional to 100.62, 150.97 and 49.31
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Solution
The fourth proportional to 100.62, 150.97 and 49.31 is: 73.99
Step by Step Solution
- Step 1: Write the proportion equation
100.62 : 150.97 = 49.31 : x - Step 2: Convert to fraction form
100.62/150.97 = 49.31/x - Step 3: Cross multiply
100.62x = 150.97 × 49.31 - Step 4: Simplify right side
100.62x = 7,444.33 - Step 5: Solve for x
x = 7,444.33/100.62 - Step 6: Final answer
x = 73.99
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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.