Finding the Fourth Proportional to 135.63, 202.34 and 115.11
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Solution
The fourth proportional to 135.63, 202.34 and 115.11 is: 171.73
Step by Step Solution
- Step 1: Write the proportion equation
135.63 : 202.34 = 115.11 : x - Step 2: Convert to fraction form
135.63/202.34 = 115.11/x - Step 3: Cross multiply
135.63x = 202.34 × 115.11 - Step 4: Simplify right side
135.63x = 23,291.65 - Step 5: Solve for x
x = 23,291.65/135.63 - Step 6: Final answer
x = 171.73
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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.