Finding the Fourth Proportional to 270.06, 405.11 and 115.99
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Solution
The fourth proportional to 270.06, 405.11 and 115.99 is: 173.99
Step by Step Solution
- Step 1: Write the proportion equation
270.06 : 405.11 = 115.99 : x - Step 2: Convert to fraction form
270.06/405.11 = 115.99/x - Step 3: Cross multiply
270.06x = 405.11 × 115.99 - Step 4: Simplify right side
270.06x = 46,988.71 - Step 5: Solve for x
x = 46,988.71/270.06 - Step 6: Final answer
x = 173.99
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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.