Finding the Fourth Proportional to 135.35, 202.97 and 39.14
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Solution
The fourth proportional to 135.35, 202.97 and 39.14 is: 58.69
Step by Step Solution
- Step 1: Write the proportion equation
135.35 : 202.97 = 39.14 : x - Step 2: Convert to fraction form
135.35/202.97 = 39.14/x - Step 3: Cross multiply
135.35x = 202.97 × 39.14 - Step 4: Simplify right side
135.35x = 7,944.05 - Step 5: Solve for x
x = 7,944.05/135.35 - Step 6: Final answer
x = 58.69
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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.