Finding the Fourth Proportional to 202.70, 303.84 and 130.58
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Solution
The fourth proportional to 202.70, 303.84 and 130.58 is: 195.73
Step by Step Solution
- Step 1: Write the proportion equation
202.70 : 303.84 = 130.58 : x - Step 2: Convert to fraction form
202.70/303.84 = 130.58/x - Step 3: Cross multiply
202.70x = 303.84 × 130.58 - Step 4: Simplify right side
202.70x = 39,675.43 - Step 5: Solve for x
x = 39,675.43/202.70 - Step 6: Final answer
x = 195.73
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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.