Finding the Fourth Proportional to 340.68, 511.14 and 135.40
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Solution
The fourth proportional to 340.68, 511.14 and 135.40 is: 203.15
Step by Step Solution
- Step 1: Write the proportion equation
340.68 : 511.14 = 135.40 : x - Step 2: Convert to fraction form
340.68/511.14 = 135.40/x - Step 3: Cross multiply
340.68x = 511.14 × 135.40 - Step 4: Simplify right side
340.68x = 69,208.36 - Step 5: Solve for x
x = 69,208.36/340.68 - Step 6: Final answer
x = 203.15
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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.