Finding the Fourth Proportional to 149.64, 224.52 and 81.08
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Solution
The fourth proportional to 149.64, 224.52 and 81.08 is: 121.65
Step by Step Solution
- Step 1: Write the proportion equation
149.64 : 224.52 = 81.08 : x - Step 2: Convert to fraction form
149.64/224.52 = 81.08/x - Step 3: Cross multiply
149.64x = 224.52 × 81.08 - Step 4: Simplify right side
149.64x = 18,202.96 - Step 5: Solve for x
x = 18,202.96/149.64 - Step 6: Final answer
x = 121.65
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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.