Finding the Fourth Proportional to 340.91, 511.11 and 178.50
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Solution
The fourth proportional to 340.91, 511.11 and 178.50 is: 267.62
Step by Step Solution
- Step 1: Write the proportion equation
340.91 : 511.11 = 178.50 : x - Step 2: Convert to fraction form
340.91/511.11 = 178.50/x - Step 3: Cross multiply
340.91x = 511.11 × 178.50 - Step 4: Simplify right side
340.91x = 91,235.05 - Step 5: Solve for x
x = 91,235.05/340.91 - Step 6: Final answer
x = 267.62
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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.