Finding the Fourth Proportional to 202.06, 303.09 and 129.10
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Solution
The fourth proportional to 202.06, 303.09 and 129.10 is: 193.65
Step by Step Solution
- Step 1: Write the proportion equation
202.06 : 303.09 = 129.10 : x - Step 2: Convert to fraction form
202.06/303.09 = 129.10/x - Step 3: Cross multiply
202.06x = 303.09 × 129.10 - Step 4: Simplify right side
202.06x = 39,128.92 - Step 5: Solve for x
x = 39,128.92/202.06 - Step 6: Final answer
x = 193.65
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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.