Finding the Fourth Proportional to 288.97, 398.74 and 170.94
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Solution
The fourth proportional to 288.97, 398.74 and 170.94 is: 235.88
Step by Step Solution
- Step 1: Write the proportion equation
288.97 : 398.74 = 170.94 : x - Step 2: Convert to fraction form
288.97/398.74 = 170.94/x - Step 3: Cross multiply
288.97x = 398.74 × 170.94 - Step 4: Simplify right side
288.97x = 68,162.24 - Step 5: Solve for x
x = 68,162.24/288.97 - Step 6: Final answer
x = 235.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.