Finding the Fourth Proportional to 369.97, 511.21 and 277.02
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Solution
The fourth proportional to 369.97, 511.21 and 277.02 is: 382.78
Step by Step Solution
- Step 1: Write the proportion equation
369.97 : 511.21 = 277.02 : x - Step 2: Convert to fraction form
369.97/511.21 = 277.02/x - Step 3: Cross multiply
369.97x = 511.21 × 277.02 - Step 4: Simplify right side
369.97x = 141,615.74 - Step 5: Solve for x
x = 141,615.74/369.97 - Step 6: Final answer
x = 382.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.