Finding the Fourth Proportional to 276.99, 382.19 and 203.18
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Solution
The fourth proportional to 276.99, 382.19 and 203.18 is: 280.34
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 382.19 = 203.18 : x - Step 2: Convert to fraction form
276.99/382.19 = 203.18/x - Step 3: Cross multiply
276.99x = 382.19 × 203.18 - Step 4: Simplify right side
276.99x = 77,652.35 - Step 5: Solve for x
x = 77,652.35/276.99 - Step 6: Final answer
x = 280.34
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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.