Finding the Fourth Proportional to 160.08, 221 and 121.44
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Solution
The fourth proportional to 160.08, 221 and 121.44 is: 167.66
Step by Step Solution
- Step 1: Write the proportion equation
160.08 : 221 = 121.44 : x - Step 2: Convert to fraction form
160.08/221 = 121.44/x - Step 3: Cross multiply
160.08x = 221 × 121.44 - Step 4: Simplify right side
160.08x = 26,838.24 - Step 5: Solve for x
x = 26,838.24/160.08 - Step 6: Final answer
x = 167.66
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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.