Finding the Fourth Proportional to 202.70, 279 and 176.78
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Solution
The fourth proportional to 202.70, 279 and 176.78 is: 243.32
Step by Step Solution
- Step 1: Write the proportion equation
202.70 : 279 = 176.78 : x - Step 2: Convert to fraction form
202.70/279 = 176.78/x - Step 3: Cross multiply
202.70x = 279 × 176.78 - Step 4: Simplify right side
202.70x = 49,321.62 - Step 5: Solve for x
x = 49,321.62/202.70 - Step 6: Final answer
x = 243.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.