Finding the Fourth Proportional to 216.84, 325.36 and 135.63
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Solution
The fourth proportional to 216.84, 325.36 and 135.63 is: 203.51
Step by Step Solution
- Step 1: Write the proportion equation
216.84 : 325.36 = 135.63 : x - Step 2: Convert to fraction form
216.84/325.36 = 135.63/x - Step 3: Cross multiply
216.84x = 325.36 × 135.63 - Step 4: Simplify right side
216.84x = 44,129.20 - Step 5: Solve for x
x = 44,129.20/216.84 - Step 6: Final answer
x = 203.51
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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.