Finding the Fourth Proportional to 300.29, 450.42 and 83.88
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Solution
The fourth proportional to 300.29, 450.42 and 83.88 is: 125.82
Step by Step Solution
- Step 1: Write the proportion equation
300.29 : 450.42 = 83.88 : x - Step 2: Convert to fraction form
300.29/450.42 = 83.88/x - Step 3: Cross multiply
300.29x = 450.42 × 83.88 - Step 4: Simplify right side
300.29x = 37,781.23 - Step 5: Solve for x
x = 37,781.23/300.29 - Step 6: Final answer
x = 125.82
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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.