Finding the Fourth Proportional to 155.85, 233.49 and 131.49
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Solution
The fourth proportional to 155.85, 233.49 and 131.49 is: 196.99
Step by Step Solution
- Step 1: Write the proportion equation
155.85 : 233.49 = 131.49 : x - Step 2: Convert to fraction form
155.85/233.49 = 131.49/x - Step 3: Cross multiply
155.85x = 233.49 × 131.49 - Step 4: Simplify right side
155.85x = 30,700.43 - Step 5: Solve for x
x = 30,700.43/155.85 - Step 6: Final answer
x = 196.99
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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.