Finding the Fourth Proportional to 331,617.82, 457,980.00 and 228,520.09
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Solution
The fourth proportional to 331,617.82, 457,980.00 and 228,520.09 is: 315,597.12
Step by Step Solution
- Step 1: Write the proportion equation
331,617.82 : 457,980.00 = 228,520.09 : x - Step 2: Convert to fraction form
331,617.82/457,980.00 = 228,520.09/x - Step 3: Cross multiply
331,617.82x = 457,980.00 × 228,520.09 - Step 4: Simplify right side
331,617.82x = 104,657,628,600.30 - Step 5: Solve for x
x = 104,657,628,600.30/331,617.82 - Step 6: Final answer
x = 315,597.12
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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.