Finding the Fourth Proportional to 283,664.97, 391,456.87 and 156,340.53
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Solution
The fourth proportional to 283,664.97, 391,456.87 and 156,340.53 is: 215,749.50
Step by Step Solution
- Step 1: Write the proportion equation
283,664.97 : 391,456.87 = 156,340.53 : x - Step 2: Convert to fraction form
283,664.97/391,456.87 = 156,340.53/x - Step 3: Cross multiply
283,664.97x = 391,456.87 × 156,340.53 - Step 4: Simplify right side
283,664.97x = 61,200,574,137.09 - Step 5: Solve for x
x = 61,200,574,137.09/283,664.97 - Step 6: Final answer
x = 215,749.50
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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.