Finding the Fourth Proportional to 188.16, 283.68 and 170.88
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Solution
The fourth proportional to 188.16, 283.68 and 170.88 is: 257.63
Step by Step Solution
- Step 1: Write the proportion equation
188.16 : 283.68 = 170.88 : x - Step 2: Convert to fraction form
188.16/283.68 = 170.88/x - Step 3: Cross multiply
188.16x = 283.68 × 170.88 - Step 4: Simplify right side
188.16x = 48,475.24 - Step 5: Solve for x
x = 48,475.24/188.16 - Step 6: Final answer
x = 257.63
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.