Finding the Fourth Proportional to 340.92, 511.62 and 135.60
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Solution
The fourth proportional to 340.92, 511.62 and 135.60 is: 203.50
Step by Step Solution
- Step 1: Write the proportion equation
340.92 : 511.62 = 135.60 : x - Step 2: Convert to fraction form
340.92/511.62 = 135.60/x - Step 3: Cross multiply
340.92x = 511.62 × 135.60 - Step 4: Simplify right side
340.92x = 69,375.67 - Step 5: Solve for x
x = 69,375.67/340.92 - Step 6: Final answer
x = 203.50
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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.