Finding the Fourth Proportional to 543,612.70, 815,419.05 and 169,635.70
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Solution
The fourth proportional to 543,612.70, 815,419.05 and 169,635.70 is: 254,453.55
Step by Step Solution
- Step 1: Write the proportion equation
543,612.70 : 815,419.05 = 169,635.70 : x - Step 2: Convert to fraction form
543,612.70/815,419.05 = 169,635.70/x - Step 3: Cross multiply
543,612.70x = 815,419.05 × 169,635.70 - Step 4: Simplify right side
543,612.70x = 138,324,181,340.09 - Step 5: Solve for x
x = 138,324,181,340.09/543,612.70 - Step 6: Final answer
x = 254,453.55
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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.