Finding the Fourth Proportional to 135.36, 202.77 and 133.74
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Solution
The fourth proportional to 135.36, 202.77 and 133.74 is: 200.34
Step by Step Solution
- Step 1: Write the proportion equation
135.36 : 202.77 = 133.74 : x - Step 2: Convert to fraction form
135.36/202.77 = 133.74/x - Step 3: Cross multiply
135.36x = 202.77 × 133.74 - Step 4: Simplify right side
135.36x = 27,118.46 - Step 5: Solve for x
x = 27,118.46/135.36 - Step 6: Final answer
x = 200.34
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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.