Finding the Fourth Proportional to 175.91, 263.81 and 84.65
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Solution
The fourth proportional to 175.91, 263.81 and 84.65 is: 126.95
Step by Step Solution
- Step 1: Write the proportion equation
175.91 : 263.81 = 84.65 : x - Step 2: Convert to fraction form
175.91/263.81 = 84.65/x - Step 3: Cross multiply
175.91x = 263.81 × 84.65 - Step 4: Simplify right side
175.91x = 22,330.41 - Step 5: Solve for x
x = 22,330.41/175.91 - Step 6: Final answer
x = 126.95
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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.