Finding the Fourth Proportional to 135.05, 202.44 and 74.05
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Solution
The fourth proportional to 135.05, 202.44 and 74.05 is: 111.00
Step by Step Solution
- Step 1: Write the proportion equation
135.05 : 202.44 = 74.05 : x - Step 2: Convert to fraction form
135.05/202.44 = 74.05/x - Step 3: Cross multiply
135.05x = 202.44 × 74.05 - Step 4: Simplify right side
135.05x = 14,990.68 - Step 5: Solve for x
x = 14,990.68/135.05 - Step 6: Final answer
x = 111.00
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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.