Finding the Fourth Proportional to 135.28, 201.95 and 114.76
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Solution
The fourth proportional to 135.28, 201.95 and 114.76 is: 171.32
Step by Step Solution
- Step 1: Write the proportion equation
135.28 : 201.95 = 114.76 : x - Step 2: Convert to fraction form
135.28/201.95 = 114.76/x - Step 3: Cross multiply
135.28x = 201.95 × 114.76 - Step 4: Simplify right side
135.28x = 23,175.78 - Step 5: Solve for x
x = 23,175.78/135.28 - Step 6: Final answer
x = 171.32
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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.