Finding the Fourth Proportional to 235.71, 325.14 and 157.05
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Solution
The fourth proportional to 235.71, 325.14 and 157.05 is: 216.64
Step by Step Solution
- Step 1: Write the proportion equation
235.71 : 325.14 = 157.05 : x - Step 2: Convert to fraction form
235.71/325.14 = 157.05/x - Step 3: Cross multiply
235.71x = 325.14 × 157.05 - Step 4: Simplify right side
235.71x = 51,063.24 - Step 5: Solve for x
x = 51,063.24/235.71 - Step 6: Final answer
x = 216.64
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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.