Finding the Fourth Proportional to 423,165.24, 634,745.12 and 107,619.42
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Solution
The fourth proportional to 423,165.24, 634,745.12 and 107,619.42 is: 161,428.43
Step by Step Solution
- Step 1: Write the proportion equation
423,165.24 : 634,745.12 = 107,619.42 : x - Step 2: Convert to fraction form
423,165.24/634,745.12 = 107,619.42/x - Step 3: Cross multiply
423,165.24x = 634,745.12 × 107,619.42 - Step 4: Simplify right side
423,165.24x = 68,310,901,662.23 - Step 5: Solve for x
x = 68,310,901,662.23/423,165.24 - Step 6: Final answer
x = 161,428.43
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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.