Finding the Fourth Proportional to 135.81, 202.92 and 133.26
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Solution
The fourth proportional to 135.81, 202.92 and 133.26 is: 199.11
Step by Step Solution
- Step 1: Write the proportion equation
135.81 : 202.92 = 133.26 : x - Step 2: Convert to fraction form
135.81/202.92 = 133.26/x - Step 3: Cross multiply
135.81x = 202.92 × 133.26 - Step 4: Simplify right side
135.81x = 27,041.12 - Step 5: Solve for x
x = 27,041.12/135.81 - Step 6: Final answer
x = 199.11
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.