Finding the Fourth Proportional to 540.94, 811.40 and 156.18
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Solution
The fourth proportional to 540.94, 811.40 and 156.18 is: 234.27
Step by Step Solution
- Step 1: Write the proportion equation
540.94 : 811.40 = 156.18 : x - Step 2: Convert to fraction form
540.94/811.40 = 156.18/x - Step 3: Cross multiply
540.94x = 811.40 × 156.18 - Step 4: Simplify right side
540.94x = 126,724.45 - Step 5: Solve for x
x = 126,724.45/540.94 - Step 6: Final answer
x = 234.27
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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.