Finding the Fourth Proportional to 178.10, 266.55 and 163.70
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Solution
The fourth proportional to 178.10, 266.55 and 163.70 is: 245.00
Step by Step Solution
- Step 1: Write the proportion equation
178.10 : 266.55 = 163.70 : x - Step 2: Convert to fraction form
178.10/266.55 = 163.70/x - Step 3: Cross multiply
178.10x = 266.55 × 163.70 - Step 4: Simplify right side
178.10x = 43,634.24 - Step 5: Solve for x
x = 43,634.24/178.10 - Step 6: Final answer
x = 245.00
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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.