Finding the Fourth Proportional to 216.99, 325.47 and 68.75
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Solution
The fourth proportional to 216.99, 325.47 and 68.75 is: 103.11
Step by Step Solution
- Step 1: Write the proportion equation
216.99 : 325.47 = 68.75 : x - Step 2: Convert to fraction form
216.99/325.47 = 68.75/x - Step 3: Cross multiply
216.99x = 325.47 × 68.75 - Step 4: Simplify right side
216.99x = 22,374.44 - Step 5: Solve for x
x = 22,374.44/216.99 - Step 6: Final answer
x = 103.11
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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.