Finding the Fourth Proportional to 135.41, 203.09 and 44.15
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Solution
The fourth proportional to 135.41, 203.09 and 44.15 is: 66.21
Step by Step Solution
- Step 1: Write the proportion equation
135.41 : 203.09 = 44.15 : x - Step 2: Convert to fraction form
135.41/203.09 = 44.15/x - Step 3: Cross multiply
135.41x = 203.09 × 44.15 - Step 4: Simplify right side
135.41x = 8,965.19 - Step 5: Solve for x
x = 8,965.19/135.41 - Step 6: Final answer
x = 66.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.