Finding the Fourth Proportional to 221.41, 305.52 and 132.99
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Solution
The fourth proportional to 221.41, 305.52 and 132.99 is: 183.51
Step by Step Solution
- Step 1: Write the proportion equation
221.41 : 305.52 = 132.99 : x - Step 2: Convert to fraction form
221.41/305.52 = 132.99/x - Step 3: Cross multiply
221.41x = 305.52 × 132.99 - Step 4: Simplify right side
221.41x = 40,631.10 - Step 5: Solve for x
x = 40,631.10/221.41 - Step 6: Final answer
x = 183.51
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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.