Finding the Fourth Proportional to 448.68, 618.84 and 274.08
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Solution
The fourth proportional to 448.68, 618.84 and 274.08 is: 378.02
Step by Step Solution
- Step 1: Write the proportion equation
448.68 : 618.84 = 274.08 : x - Step 2: Convert to fraction form
448.68/618.84 = 274.08/x - Step 3: Cross multiply
448.68x = 618.84 × 274.08 - Step 4: Simplify right side
448.68x = 169,611.67 - Step 5: Solve for x
x = 169,611.67/448.68 - Step 6: Final answer
x = 378.02
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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.