Finding the Fourth Proportional to 394.91, 544.99 and 229.18
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Solution
The fourth proportional to 394.91, 544.99 and 229.18 is: 316.28
Step by Step Solution
- Step 1: Write the proportion equation
394.91 : 544.99 = 229.18 : x - Step 2: Convert to fraction form
394.91/544.99 = 229.18/x - Step 3: Cross multiply
394.91x = 544.99 × 229.18 - Step 4: Simplify right side
394.91x = 124,900.81 - Step 5: Solve for x
x = 124,900.81/394.91 - Step 6: Final answer
x = 316.28
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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.