Finding the Fourth Proportional to 154.99, 232.08 and 109.09
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Solution
The fourth proportional to 154.99, 232.08 and 109.09 is: 163.35
Step by Step Solution
- Step 1: Write the proportion equation
154.99 : 232.08 = 109.09 : x - Step 2: Convert to fraction form
154.99/232.08 = 109.09/x - Step 3: Cross multiply
154.99x = 232.08 × 109.09 - Step 4: Simplify right side
154.99x = 25,317.61 - Step 5: Solve for x
x = 25,317.61/154.99 - Step 6: Final answer
x = 163.35
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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.