Finding the Fourth Proportional to 415.51, 573.37 and 228.99
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Solution
The fourth proportional to 415.51, 573.37 and 228.99 is: 315.99
Step by Step Solution
- Step 1: Write the proportion equation
415.51 : 573.37 = 228.99 : x - Step 2: Convert to fraction form
415.51/573.37 = 228.99/x - Step 3: Cross multiply
415.51x = 573.37 × 228.99 - Step 4: Simplify right side
415.51x = 131,296.00 - Step 5: Solve for x
x = 131,296.00/415.51 - Step 6: Final answer
x = 315.99
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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.