Finding the Fourth Proportional to 271.83, 405.75 and 259.99
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Solution
The fourth proportional to 271.83, 405.75 and 259.99 is: 388.08
Step by Step Solution
- Step 1: Write the proportion equation
271.83 : 405.75 = 259.99 : x - Step 2: Convert to fraction form
271.83/405.75 = 259.99/x - Step 3: Cross multiply
271.83x = 405.75 × 259.99 - Step 4: Simplify right side
271.83x = 105,490.94 - Step 5: Solve for x
x = 105,490.94/271.83 - Step 6: Final answer
x = 388.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.