Finding the Fourth Proportional to 216.99, 325.77 and 125.76
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Solution
The fourth proportional to 216.99, 325.77 and 125.76 is: 188.81
Step by Step Solution
- Step 1: Write the proportion equation
216.99 : 325.77 = 125.76 : x - Step 2: Convert to fraction form
216.99/325.77 = 125.76/x - Step 3: Cross multiply
216.99x = 325.77 × 125.76 - Step 4: Simplify right side
216.99x = 40,968.84 - Step 5: Solve for x
x = 40,968.84/216.99 - Step 6: Final answer
x = 188.81
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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.