Finding the Fourth Proportional to 133.64, 201.70 and 133.64
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Solution
The fourth proportional to 133.64, 201.70 and 133.64 is: 201.70
Step by Step Solution
- Step 1: Write the proportion equation
133.64 : 201.70 = 133.64 : x - Step 2: Convert to fraction form
133.64/201.70 = 133.64/x - Step 3: Cross multiply
133.64x = 201.70 × 133.64 - Step 4: Simplify right side
133.64x = 26,955.19 - Step 5: Solve for x
x = 26,955.19/133.64 - Step 6: Final answer
x = 201.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.