Finding the Fourth Proportional to 394.76, 544.68 and 228.99
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Solution
The fourth proportional to 394.76, 544.68 and 228.99 is: 315.96
Step by Step Solution
- Step 1: Write the proportion equation
394.76 : 544.68 = 228.99 : x - Step 2: Convert to fraction form
394.76/544.68 = 228.99/x - Step 3: Cross multiply
394.76x = 544.68 × 228.99 - Step 4: Simplify right side
394.76x = 124,726.27 - Step 5: Solve for x
x = 124,726.27/394.76 - Step 6: Final answer
x = 315.96
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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.