Finding the Fourth Proportional to 202.18, 278.94 and 181.70
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Solution
The fourth proportional to 202.18, 278.94 and 181.70 is: 250.68
Step by Step Solution
- Step 1: Write the proportion equation
202.18 : 278.94 = 181.70 : x - Step 2: Convert to fraction form
202.18/278.94 = 181.70/x - Step 3: Cross multiply
202.18x = 278.94 × 181.70 - Step 4: Simplify right side
202.18x = 50,683.40 - Step 5: Solve for x
x = 50,683.40/202.18 - Step 6: Final answer
x = 250.68
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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.