Finding the Fourth Proportional to 188.44, 260.21 and 133.30
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Solution
The fourth proportional to 188.44, 260.21 and 133.30 is: 184.07
Step by Step Solution
- Step 1: Write the proportion equation
188.44 : 260.21 = 133.30 : x - Step 2: Convert to fraction form
188.44/260.21 = 133.30/x - Step 3: Cross multiply
188.44x = 260.21 × 133.30 - Step 4: Simplify right side
188.44x = 34,685.99 - Step 5: Solve for x
x = 34,685.99/188.44 - Step 6: Final answer
x = 184.07
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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.