Finding the Fourth Proportional to 135.02, 202.60 and 128.99
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Solution
The fourth proportional to 135.02, 202.60 and 128.99 is: 193.56
Step by Step Solution
- Step 1: Write the proportion equation
135.02 : 202.60 = 128.99 : x - Step 2: Convert to fraction form
135.02/202.60 = 128.99/x - Step 3: Cross multiply
135.02x = 202.60 × 128.99 - Step 4: Simplify right side
135.02x = 26,134.04 - Step 5: Solve for x
x = 26,134.04/135.02 - Step 6: Final answer
x = 193.56
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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.