Finding the Fourth Proportional to 135.60, 203.28 and 122.48
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Solution
The fourth proportional to 135.60, 203.28 and 122.48 is: 183.61
Step by Step Solution
- Step 1: Write the proportion equation
135.60 : 203.28 = 122.48 : x - Step 2: Convert to fraction form
135.60/203.28 = 122.48/x - Step 3: Cross multiply
135.60x = 203.28 × 122.48 - Step 4: Simplify right side
135.60x = 24,897.73 - Step 5: Solve for x
x = 24,897.73/135.60 - Step 6: Final answer
x = 183.61
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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.