Finding the Fourth Proportional to 97.26, 133.50 and 84.30
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Solution
The fourth proportional to 97.26, 133.50 and 84.30 is: 115.71
Step by Step Solution
- Step 1: Write the proportion equation
97.26 : 133.50 = 84.30 : x - Step 2: Convert to fraction form
97.26/133.50 = 84.30/x - Step 3: Cross multiply
97.26x = 133.50 × 84.30 - Step 4: Simplify right side
97.26x = 11,254.05 - Step 5: Solve for x
x = 11,254.05/97.26 - Step 6: Final answer
x = 115.71
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.