Finding the Fourth Proportional to 135.19, 203.01 and 131.55
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Solution
The fourth proportional to 135.19, 203.01 and 131.55 is: 197.54
Step by Step Solution
- Step 1: Write the proportion equation
135.19 : 203.01 = 131.55 : x - Step 2: Convert to fraction form
135.19/203.01 = 131.55/x - Step 3: Cross multiply
135.19x = 203.01 × 131.55 - Step 4: Simplify right side
135.19x = 26,705.97 - Step 5: Solve for x
x = 26,705.97/135.19 - Step 6: Final answer
x = 197.54
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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.