Finding the Fourth Proportional to 202.99, 304.59 and 81.26
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Solution
The fourth proportional to 202.99, 304.59 and 81.26 is: 121.93
Step by Step Solution
- Step 1: Write the proportion equation
202.99 : 304.59 = 81.26 : x - Step 2: Convert to fraction form
202.99/304.59 = 81.26/x - Step 3: Cross multiply
202.99x = 304.59 × 81.26 - Step 4: Simplify right side
202.99x = 24,750.91 - Step 5: Solve for x
x = 24,750.91/202.99 - Step 6: Final answer
x = 121.93
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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.