Finding the Fourth Proportional to 135.57, 202.75 and 133.14
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Solution
The fourth proportional to 135.57, 202.75 and 133.14 is: 199.12
Step by Step Solution
- Step 1: Write the proportion equation
135.57 : 202.75 = 133.14 : x - Step 2: Convert to fraction form
135.57/202.75 = 133.14/x - Step 3: Cross multiply
135.57x = 202.75 × 133.14 - Step 4: Simplify right side
135.57x = 26,995.31 - Step 5: Solve for x
x = 26,995.31/135.57 - Step 6: Final answer
x = 199.12
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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.