Finding the Fourth Proportional to 134.63, 202.84 and 115.79
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Solution
The fourth proportional to 134.63, 202.84 and 115.79 is: 174.45
Step by Step Solution
- Step 1: Write the proportion equation
134.63 : 202.84 = 115.79 : x - Step 2: Convert to fraction form
134.63/202.84 = 115.79/x - Step 3: Cross multiply
134.63x = 202.84 × 115.79 - Step 4: Simplify right side
134.63x = 23,486.26 - Step 5: Solve for x
x = 23,486.26/134.63 - Step 6: Final answer
x = 174.45
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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.