Finding the Fourth Proportional to 288.44, 432.67 and 115.19
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Solution
The fourth proportional to 288.44, 432.67 and 115.19 is: 172.79
Step by Step Solution
- Step 1: Write the proportion equation
288.44 : 432.67 = 115.19 : x - Step 2: Convert to fraction form
288.44/432.67 = 115.19/x - Step 3: Cross multiply
288.44x = 432.67 × 115.19 - Step 4: Simplify right side
288.44x = 49,839.26 - Step 5: Solve for x
x = 49,839.26/288.44 - Step 6: Final answer
x = 172.79
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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.