Finding the Fourth Proportional to 618.97, 854.18 and 356.99
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Solution
The fourth proportional to 618.97, 854.18 and 356.99 is: 492.64
Step by Step Solution
- Step 1: Write the proportion equation
618.97 : 854.18 = 356.99 : x - Step 2: Convert to fraction form
618.97/854.18 = 356.99/x - Step 3: Cross multiply
618.97x = 854.18 × 356.99 - Step 4: Simplify right side
618.97x = 304,927.66 - Step 5: Solve for x
x = 304,927.66/618.97 - Step 6: Final answer
x = 492.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.