Finding the Fourth Proportional to 235.87, 325.55 and 157.19
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Solution
The fourth proportional to 235.87, 325.55 and 157.19 is: 216.95
Step by Step Solution
- Step 1: Write the proportion equation
235.87 : 325.55 = 157.19 : x - Step 2: Convert to fraction form
235.87/325.55 = 157.19/x - Step 3: Cross multiply
235.87x = 325.55 × 157.19 - Step 4: Simplify right side
235.87x = 51,171.97 - Step 5: Solve for x
x = 51,171.97/235.87 - Step 6: Final answer
x = 216.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.