Finding the Fourth Proportional to 161.32, 241.93 and 74.63
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Solution
The fourth proportional to 161.32, 241.93 and 74.63 is: 111.92
Step by Step Solution
- Step 1: Write the proportion equation
161.32 : 241.93 = 74.63 : x - Step 2: Convert to fraction form
161.32/241.93 = 74.63/x - Step 3: Cross multiply
161.32x = 241.93 × 74.63 - Step 4: Simplify right side
161.32x = 18,055.24 - Step 5: Solve for x
x = 18,055.24/161.32 - Step 6: Final answer
x = 111.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.