Finding the Fourth Proportional to 276.99, 382.64 and 199.77
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Solution
The fourth proportional to 276.99, 382.64 and 199.77 is: 275.96
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 382.64 = 199.77 : x - Step 2: Convert to fraction form
276.99/382.64 = 199.77/x - Step 3: Cross multiply
276.99x = 382.64 × 199.77 - Step 4: Simplify right side
276.99x = 76,438.99 - Step 5: Solve for x
x = 76,438.99/276.99 - Step 6: Final answer
x = 275.96
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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.