Finding the Fourth Proportional to 149.63, 206.37 and 135.99
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Solution
The fourth proportional to 149.63, 206.37 and 135.99 is: 187.56
Step by Step Solution
- Step 1: Write the proportion equation
149.63 : 206.37 = 135.99 : x - Step 2: Convert to fraction form
149.63/206.37 = 135.99/x - Step 3: Cross multiply
149.63x = 206.37 × 135.99 - Step 4: Simplify right side
149.63x = 28,064.26 - Step 5: Solve for x
x = 28,064.26/149.63 - Step 6: Final answer
x = 187.56
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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.