Finding the Fourth Proportional to 261,193.56, 391,560.60 and 103,532.68
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Solution
The fourth proportional to 261,193.56, 391,560.60 and 103,532.68 is: 155,207.95
Step by Step Solution
- Step 1: Write the proportion equation
261,193.56 : 391,560.60 = 103,532.68 : x - Step 2: Convert to fraction form
261,193.56/391,560.60 = 103,532.68/x - Step 3: Cross multiply
261,193.56x = 391,560.60 × 103,532.68 - Step 4: Simplify right side
261,193.56x = 40,539,318,300.41 - Step 5: Solve for x
x = 40,539,318,300.41/261,193.56 - Step 6: Final answer
x = 155,207.95
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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.