Finding the Fourth Proportional to 311,755.78, 430,224.95 and 168,515.48
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Solution
The fourth proportional to 311,755.78, 430,224.95 and 168,515.48 is: 232,552.43
Step by Step Solution
- Step 1: Write the proportion equation
311,755.78 : 430,224.95 = 168,515.48 : x - Step 2: Convert to fraction form
311,755.78/430,224.95 = 168,515.48/x - Step 3: Cross multiply
311,755.78x = 430,224.95 × 168,515.48 - Step 4: Simplify right side
311,755.78x = 72,499,564,190.21 - Step 5: Solve for x
x = 72,499,564,190.21/311,755.78 - Step 6: Final answer
x = 232,552.43
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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.