Finding the Fourth Proportional to 277.99, 416.99 and 140.91
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Solution
The fourth proportional to 277.99, 416.99 and 140.91 is: 211.37
Step by Step Solution
- Step 1: Write the proportion equation
277.99 : 416.99 = 140.91 : x - Step 2: Convert to fraction form
277.99/416.99 = 140.91/x - Step 3: Cross multiply
277.99x = 416.99 × 140.91 - Step 4: Simplify right side
277.99x = 58,758.06 - Step 5: Solve for x
x = 58,758.06/277.99 - Step 6: Final answer
x = 211.37
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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.