Finding the Fourth Proportional to 289,850.80, 399,531.84 and 228,496.96
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Solution
The fourth proportional to 289,850.80, 399,531.84 and 228,496.96 is: 314,961.39
Step by Step Solution
- Step 1: Write the proportion equation
289,850.80 : 399,531.84 = 228,496.96 : x - Step 2: Convert to fraction form
289,850.80/399,531.84 = 228,496.96/x - Step 3: Cross multiply
289,850.80x = 399,531.84 × 228,496.96 - Step 4: Simplify right side
289,850.80x = 91,291,810,863.21 - Step 5: Solve for x
x = 91,291,810,863.21/289,850.80 - Step 6: Final answer
x = 314,961.39
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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.