Finding the Fourth Proportional to 394.18, 544.08 and 228.47
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Solution
The fourth proportional to 394.18, 544.08 and 228.47 is: 315.35
Step by Step Solution
- Step 1: Write the proportion equation
394.18 : 544.08 = 228.47 : x - Step 2: Convert to fraction form
394.18/544.08 = 228.47/x - Step 3: Cross multiply
394.18x = 544.08 × 228.47 - Step 4: Simplify right side
394.18x = 124,303.24 - Step 5: Solve for x
x = 124,303.24/394.18 - Step 6: Final answer
x = 315.35
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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.