Finding the Fourth Proportional to 193.95, 267.80 and 135.81
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Solution
The fourth proportional to 193.95, 267.80 and 135.81 is: 187.52
Step by Step Solution
- Step 1: Write the proportion equation
193.95 : 267.80 = 135.81 : x - Step 2: Convert to fraction form
193.95/267.80 = 135.81/x - Step 3: Cross multiply
193.95x = 267.80 × 135.81 - Step 4: Simplify right side
193.95x = 36,369.24 - Step 5: Solve for x
x = 36,369.24/193.95 - Step 6: Final answer
x = 187.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.