Finding the Fourth Proportional to 283,639.98, 391,415.95 and 154,581.77
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Solution
The fourth proportional to 283,639.98, 391,415.95 and 154,581.77 is: 213,318.90
Step by Step Solution
- Step 1: Write the proportion equation
283,639.98 : 391,415.95 = 154,581.77 : x - Step 2: Convert to fraction form
283,639.98/391,415.95 = 154,581.77/x - Step 3: Cross multiply
283,639.98x = 391,415.95 × 154,581.77 - Step 4: Simplify right side
283,639.98x = 60,505,767,627.24 - Step 5: Solve for x
x = 60,505,767,627.24/283,639.98 - Step 6: Final answer
x = 213,318.90
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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.