Finding the Fourth Proportional to 135.18, 203.48 and 122.63
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Solution
The fourth proportional to 135.18, 203.48 and 122.63 is: 184.58
Step by Step Solution
- Step 1: Write the proportion equation
135.18 : 203.48 = 122.63 : x - Step 2: Convert to fraction form
135.18/203.48 = 122.63/x - Step 3: Cross multiply
135.18x = 203.48 × 122.63 - Step 4: Simplify right side
135.18x = 24,951.12 - Step 5: Solve for x
x = 24,951.12/135.18 - Step 6: Final answer
x = 184.58
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.