Finding the Fourth Proportional to 340.69, 511.21 and 135.66
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Solution
The fourth proportional to 340.69, 511.21 and 135.66 is: 203.56
Step by Step Solution
- Step 1: Write the proportion equation
340.69 : 511.21 = 135.66 : x - Step 2: Convert to fraction form
340.69/511.21 = 135.66/x - Step 3: Cross multiply
340.69x = 511.21 × 135.66 - Step 4: Simplify right side
340.69x = 69,352.12 - Step 5: Solve for x
x = 69,352.12/340.69 - Step 6: Final answer
x = 203.56
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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.