Finding the Fourth Proportional to 323,755.06, 485,336.76 and 113,278.18
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Solution
The fourth proportional to 323,755.06, 485,336.76 and 113,278.18 is: 169,813.76
Step by Step Solution
- Step 1: Write the proportion equation
323,755.06 : 485,336.76 = 113,278.18 : x - Step 2: Convert to fraction form
323,755.06/485,336.76 = 113,278.18/x - Step 3: Cross multiply
323,755.06x = 485,336.76 × 113,278.18 - Step 4: Simplify right side
323,755.06x = 54,978,064,859.90 - Step 5: Solve for x
x = 54,978,064,859.90/323,755.06 - Step 6: Final answer
x = 169,813.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.