Finding the Fourth Proportional to 202.84, 304.10 and 81.01
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Solution
The fourth proportional to 202.84, 304.10 and 81.01 is: 121.45
Step by Step Solution
- Step 1: Write the proportion equation
202.84 : 304.10 = 81.01 : x - Step 2: Convert to fraction form
202.84/304.10 = 81.01/x - Step 3: Cross multiply
202.84x = 304.10 × 81.01 - Step 4: Simplify right side
202.84x = 24,633.62 - Step 5: Solve for x
x = 24,633.62/202.84 - Step 6: Final answer
x = 121.45
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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.