Finding the Fourth Proportional to 149.75, 206.64 and 94.53
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Solution
The fourth proportional to 149.75, 206.64 and 94.53 is: 130.44
Step by Step Solution
- Step 1: Write the proportion equation
149.75 : 206.64 = 94.53 : x - Step 2: Convert to fraction form
149.75/206.64 = 94.53/x - Step 3: Cross multiply
149.75x = 206.64 × 94.53 - Step 4: Simplify right side
149.75x = 19,533.68 - Step 5: Solve for x
x = 19,533.68/149.75 - Step 6: Final answer
x = 130.44
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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.