Finding the Fourth Proportional to 407.99, 611.37 and 277.98
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Solution
The fourth proportional to 407.99, 611.37 and 277.98 is: 416.56
Step by Step Solution
- Step 1: Write the proportion equation
407.99 : 611.37 = 277.98 : x - Step 2: Convert to fraction form
407.99/611.37 = 277.98/x - Step 3: Cross multiply
407.99x = 611.37 × 277.98 - Step 4: Simplify right side
407.99x = 169,948.63 - Step 5: Solve for x
x = 169,948.63/407.99 - Step 6: Final answer
x = 416.56
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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.