Finding the Fourth Proportional to 208,372.68, 311,877.36 and 113,365.80
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Solution
The fourth proportional to 208,372.68, 311,877.36 and 113,365.80 is: 169,677.84
Step by Step Solution
- Step 1: Write the proportion equation
208,372.68 : 311,877.36 = 113,365.80 : x - Step 2: Convert to fraction form
208,372.68/311,877.36 = 113,365.80/x - Step 3: Cross multiply
208,372.68x = 311,877.36 × 113,365.80 - Step 4: Simplify right side
208,372.68x = 35,356,226,418.29 - Step 5: Solve for x
x = 35,356,226,418.29/208,372.68 - Step 6: Final answer
x = 169,677.84
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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.