Finding the Fourth Proportional to 340.70, 511.09 and 135.23
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Solution
The fourth proportional to 340.70, 511.09 and 135.23 is: 202.86
Step by Step Solution
- Step 1: Write the proportion equation
340.70 : 511.09 = 135.23 : x - Step 2: Convert to fraction form
340.70/511.09 = 135.23/x - Step 3: Cross multiply
340.70x = 511.09 × 135.23 - Step 4: Simplify right side
340.70x = 69,114.70 - Step 5: Solve for x
x = 69,114.70/340.70 - Step 6: Final answer
x = 202.86
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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.